וַיַּזְעֵ֨ק סִֽיסְרָ֜א אֶת־כָּל־רִכְבּ֗וֹ תְּשַׁ֤ע מֵאוֹת֙ רֶ֣כֶב בַּרְזֶ֔ל וְאֶת־כָּל־הָעָ֖ם אֲשֶׁ֣ר אִתּ֑וֹ מֵחֲרֹ֥שֶׁת הַגּוֹיִ֖ם אֶל־נַ֥חַל קִישֽׁוֹן׃
Tinipon ni Sisera ang lahat ng kanyang karwahe, siyamnaraang karwaheng bakal, at ang buong hukbong kasama niya, mula sa Haroshet ng mga Bansa hanggang sa batis ng Kison.
Rabbeinu Bahya
A further comment in Mechilta (Shirah, 2): the words כי גאה גאה are a reminder that anyone who dares act arrogantly in the knowledge that there is a G’d who is superior to him will be punished. A number of examples are listed there. 1) The Egyptians expressed their arrogance by boasting of their unfailing water supply, the river Nile. Hence G’d punished them through water. The generation of the deluge boasted that they did not need rain (a symbol of blessing from heaven) as they depended on the mist rising from the earth (compare Genesis 2,6). As a result of this boast G’d punished them by water (40 days unceasing rain, plus the opening of subterranean sources of water gushing forth, Genesis 7,11). The people of Sodom, etc., boasted of their wealth and the gold and silver they had amassed. They were so arrogant that they legislated against anyone staying in their cities overnight so that they should not have to share their wealth with any traveler. As a result of this insufferable behavior G’d wiped out both them and their belongings. This is the meaning of Job 28,4: “they open up a shaft far from where men live, in places forgotten by wayfarers, destitute of men, far removed.” We also read in Job 12,5: ”in the thought of the complacent; there is contempt for calamity; it is ready for those whose foot slips.” Ezekiel 16,49 describes the sin of the people of Sodom in the following words: “only this was the sin of your sister Sodom: arrogance! She and her daughters had plenty of bread and untroubled tranquillity; yet she did not support the poor and the needy.” Pharaoh boasted of the might of his chariots as we read in 13,14: “he took 600 choice chariots.” As a result of his reliance and boast of the invincibility of these chariots, G’d punished him by means of these very chariots as we read in 15,4. Siserah also was proud of his iron chariots (horse-drawn tanks), as reported in Judges 4,13. G’d punished him by means of these chariots as we know from Judges 5,20. Samson who had boasted of getting what was “good in his eyes,” was punished by being deprived of his eyesight (Judges 14,3 and 16,1). He had committed a sin at Azzah by sleeping with a harlot (Judges 16,1). He was taken prisoner at Azzah and humbled (Judges 16,21). Avshalom used to boast of his hair only to be eventually caught by it which led to his violent death (Samuel II 18,9). Sancheriv, King of Assyria used to boast of his chariots (Isaiah 37,24). In the end G’d sent an angel to destroy his entire military encampment (Kings II 19,35). Nebuchadnezzar had also boasted saying that he would ascend to the clouds and match the Most High (Isaiah 14,14). G’d dealt with him by consigning him to the deepest part of gehinom (Isaiah 14,15). He said to him: “you elevated yourself above mankind, I will separate you from mankind by placing you far below” (Compare Daniel 4,22). The Torah wrote in our verse גאה גאה to teach us this lesson.
Metzudat David
They chose new gods: For when Israel chooses new gods, then war comes to their cities on account of the punishment; but not when they better their ways. As was it not that in the days of Yehoshua, it was stated (Joshua 4:13), "About forty thousand, etc. went across, etc. to the steppes of Yericho?" And was there any shield and spear seen with these forty thousand? For was it not by a miracle that they captured Yericho, and not through war and with a shield and a spear?
Or HaChaim
נטית ימינך תבלעימו ארץ, "when You inclined Your right hand the earth swallowed them." Mechilta describes the sea as tossing the Egyptians onto the dry land and the earth as tossing them right back into the sea. The dry land argued with the sea saying: "considering that I was cursed by G'd for having merely absorbed a single human being's blood, i.e. Abel's, at the time, what will G'd do to me if I will accept an entire population of human beings unless G'd swears an oath to me not to demand an accounting from me? [this is based on the meaning of "right hand" often being equated with an oath. Ed.] Targum Yonathan also explains our verse in this sense. We learn from here that the sea did not want to accept the Egyptians and tossed them out. This contradicts something we have learned in Pessachim 118. G'd is quoted as saying to the guardian angel of the sea: "spit them out onto the dry land." The guardian angel of the sea retorted: "Lord of the universe, is there then a servant who has been given a gift by his master (food for the fish according to Rashi) and the master subsequently demands the gift back?" To this argument G'd replied: "I will give you a gift worth one and a half times the original gift if you give Me back the original gift." The sea replied: "can a servant take a master to court?" G'd answered: "I will guarantee My promise by giving you the river Kishon as a pledge." Upon hearing this the sea immediately disgorged the bodies of the Egyptians onto the dry land and the Israelites were able to see that they were dead. It is clear from that story in the Talmud that the sea was quite unwilling to toss the Egyptians onto the dry land. Why then was the sea not overjoyed when the dry land refused the bodies of the Egyptians and tossed them back into the sea? Besides, why did G'd have to repay the sea from the camp of Siserah (900 chariots versus the Egyptians' 600 chariots, compare Judges 4,13)? Why did He not repay the sea personally so that He did not have to give the sea the river Kishon as a pledge?