Midras Ulangan 20:8: Midrash Tanchuma, Aggadat Bereshit, Midrash Tanchuma Buber & Bereshit Rabbah

Another explanation of the word va-yarek: This indicates that he thinned out (herikan) their numbers by saying to them: What man is there that is fearful and fainthearted? (Deut. 20:8). That is, whosoever is fearful because of his sins and weak (ve-rakh) of heart (fainthearted) on account of his evil deeds, let him return home, lest his heart melt away (ibid.). With this statement, he thinned out their ranks one by one until only Eliezer remained. Whence do we know this? We know it from the numeral value of the letters of Eliezer’s name. The alef is one, the lamed, thirty, the yod, ten, the ayin seventy, the zayin, seven, and the resh, two hundred, totaling three hundred and eighteen in all (and Scripture states that He led forth … three hundred and eighteen) (Gen. 14:14). And yet that is followed by the singular form he pursued, rather than the plural “they pursued” (implying only one).

[3] Alternative interpretation: "After these events, what is written above the matter? 'And Abraham heard that his brother was taken captive'." (Genesis 14:14). And although his brother was Lot, after all the strife that they had, as it says "And there was strife between the herdsmen of Abram's cattle and the herdsmen of Lot's cattle" (Genesis 13:7), Abram still referred to Lot as his brother, as it says "For we are brothers" (Genesis 13:8). "And he armed his trained servants" (Genesis 14:14). From here we learn that Abram took silver, gold, and jewelry and adorned them, and said to them, "We are going to war to save Lot. Do not focus on wealth. If you are going for the sake of silver and gold, there is plenty before you." As it says, "And he armed his trained servants." And "armed" can only mean adorned with silver and gold, as it says "Her wings are covered with silver, and her pinions with yellow gold" (Psalms 68:14). Alternatively, "armed" means empty-handed, as it is written in the Torah, "Who is the man that is fearful and soft-heated?" (Deuteronomy 20:8), Abraham acted similarly. He said to his troops, "You are going out to war, but anyone who has sins in his hand and is afraid of his deeds should not go out with us." When all those men heard this, anyone who knew in his heart that he had sinned did not go out with Abraham, and they all turned back except for Eliezer who was righteous. Then, God said to Abraham, "He will go with you, and I will give him the strength of 318 men, so it will be as if all of them went out with you." Similarly, Eliezer's strength was equivalent to 318 men. And Abraham pursued [the kings] as far as Dan (Genesis 14:14). Why did he pursue them all the way to Dan? Our sages said that there are two things that are punished, those who plant a tree in the Sabbatical year and those who sell the produce of the Sabbatical year. Similarly, Abraham punished them before and after the prohibition [against such actions] came into effect. And how did he do so before [the prohibition was enacted]? Until now, when Jeroboam, the son of Nebat, would establish an idol in Dan, as it is said, "And he put one in Beth-El and the other he placed in Dan" (1 Kings 12:29). Abraham had already arrived at that place and did not pursue them any further, as it is written, "And he pursued them as far as Dan, and he recovered all the goods" (Genesis 14:15).. What did he see in pursuing them to Dan? Our sages said two things strike those who are before and after, as in the case of the "sabbatical year" where one who plants before it and after it is liable. Similarly, Abraham pursued them before and after, but how did he pursue them until now when Jeroboam son of Nebat set up a sanctuary in Dan, as it says, "And he placed the one in Bethel [and the other he put in Dan]" (1 Kings 12:29)? Abraham had already reached that place and did not pursue them anymore, as it says, "And he pursued them to Dan and he divided himself against them by night" (Genesis 14:15). The Holy One, blessed be He, did this for Abraham, as it says, "And it came to pass that at midnight the Lord smote" (Exodus 12:29), "And he brought back all the goods" (Genesis 14:16), "Then the king of Sodom went out to meet him" (Genesis 14:17). When the king of Sodom saw Abraham coming to pursue him, he was playing with him, as it says, "All those who see me will mock me" (Psalms 22:8). This was the king who went out to pursue sixteen kings and their armies. When he returned safely, he said, "Let them pass in peace" (Isaiah 43:3). "Then the king of Sodom went out to meet him" (Genesis 14:17), and said to him, "Give me the persons" (Genesis 14:21). Abraham immediately swore to him, as it says, "I have lifted my hand" (Genesis 14:22), and lifting one's hand is an oath, as it says, "He raised his right hand and his left hand to heaven [and swore by the living God]" (Daniel 12:7). "If from a thread" (Genesis 14:23), why did the Holy One, blessed be He, promise to tithe me, as it says, "And I will bless those who bless you" (Genesis 12:3)? "And I will curse him who curses you" (Genesis 12:3). I am poorer than you. You should say, "I enriched you." "If from a thread" (Genesis 14:23). The Holy One, blessed be He, said to him, "You said, 'If from a thread.' I will give your children a thread of righteousness that will encompass them, just as the sages have explained." "I give your children the commandment of tzitzit which is made of thread, as it says 'they shall make for themselves fringes' (Numbers 15:38). You said until shoelace, I give your children the commandment of shoe removal, as it says 'he shall remove his shoe' (Deuteronomy 25:9). Additionally, I give your children the merit of the Passover commandment, as it says 'you shall eat it with your loins girded, your sandals on your feet' (Exodus 12:11). If you said from thread, I praise your children with the thread, as it says 'your hair is like a flock of goats' (Song of Songs 4:2). Moreover, in the merit of this, I punish their enemies, as it says 'over Edom I cast my shoe' (Psalms 60:9). If you said until shoelace, I praise your children with their footwear, as it says 'how beautiful are your steps in sandals' (Song of Songs 7:1). You have rejected the reward of flesh and blood, see the reward that is prepared for you, as it says 'your reward is very great' (Genesis 15:1)."

How do we know that the passages are to be on one roll of parchment? We can deduce this from the fact that it is written: And it shall be for a sign unto thee (Exod. 13:9)—for thee, and not (just) for others.²⁴Just as it appears on one container to other, so it should be one parchment for you. What is the size of the phylactery strip? R. Rami the son of Abba stated that R. Simeon the son of Lakish said: It is the size of the snapping finger. Which is the snapping finger? The middle finger. And its width is that of the thickness of barley corn. The law enjoins one to put the hand phylactery on first, and then pronounce the blessing: “Our God, who sanctifies us by His commandments and has commanded us to put on the phylacteries.” After that one dons the head phylactery while offering the blessing: “Our God, King of the Universe, who sanctifies us and has commanded us concerning the law of the phylacteries.” However, if he speaks in between the hand phylactery and the head phylactery, he is guilty of a transgression for which he must return home from the battlefront.²⁵As laid down in Deut. 20:8, according to the rabbis; one who has a transgression on his conscience should not remain on the battlefield of a war of conquest, aside from Joshua’s wars. This transgression is considered serious enough to fall in that category. But if he pauses while putting on the hand or head phylactery with the phrase “His great name” or to recite the Kedushah,²⁶A prayer in the ritual; “Holy, holy, holy is the Lord of Hosts.” he need not return from the battle. He must start over again, for each phylactery requires two blessings.²⁷One for itself and one for its companion phylactery. If recited together they support each other. However, if one should interrupt the blessings of the phylacteries in order to respond with the words “His great name” or the Kedushah, he has canceled the first blessing and must recite both of them again. Surely it is not necessary to state that if he discusses secular matters during that time, he is guilty of a serious transgression. When he takes off the phylacteries he must remove the head phylactery first and then the hand phylactery.