Midrasch zu Tehillim 92:6

[partial transl.] - [regarding II Sam. 23:1] [regarding II Sam. 23:1] "The utterance of is David the son of Ishai, and he utterance of the person who stands" on the mountains of learning, who accepted upon themselves the yoke of Torah and the yoke of mitzvot. What is your payment in front of Me? That you will be called 'the anointed of the God of Yaakov, and the sweet singer of Israel'. Happy is the person who sets themselves as an ox to the yoke, and as a donkey to the burden, and sits and meditates every day in Torah, always, immediately the Spirit of God rests on them, and the their Torah gets inside them, as it is written "Ho, everyone who thirsts, come for water" (Isaiah 55:1), and any mention of water really means Torah. How so? Explanation: a person reads Torah, prophets, writings, Mishnah, Halakhot, Agadot, and Midrash; and spends much time sitting, and little time in business, immediately the spirit of God is within that person, and His message are in that person's tongue, as it is written "The spirit of Ad-nai has spoken through me, His message is on my tongue" (II Sam 23:2). Happy is the person that plays with the words of the Torah and sits and chews on them like an animal that chews the cud on the field. ...

And Joseph was brought down into Egypt. Scripture states elsewhere: How great are Thy works, O Lord! Thy thoughts are very deep (Ps. 92:6). R. Simeon the son of Yohai said: There are certain creatures that thrive in water but cannot thrive on land, while other creatures thrive on land but cannot thrive in water. If those creatures that dwell in the sea ascend onto dry land, they cannot survive, and if those that live on dry land descend into the sea, they cannot survive. Nevertheless Jonah descended into the sea and lived, as it is said: So they took up Jonah and cast him into the sea (Jonah 1:15). And the fish that swallowed him ascended to dry land and survived, as is said: And God spoke to the fish, and he threw up Jonah onto dry land (ibid. 2:11). Thus we learn that a place which results in death to one may give life to another, and a place which gives life to one may result in death to another. Hence Scripture states: How great are Thy words, O Lord! (Ps. 92:6).

There are creatures that thrive in the air but do not thrive in fire, and conversely there are creatures that thrive in fire but do not thrive in the air. If one that lives in the air enters a fire, he cannot survive, and if one that lives in fire ascends into the air, he cannot survive. Yet Hananiah, Mishael, and Azariah were hurled into the fire and went forth unscathed, as it is said: Then Shadrach, Meshach, and Abed-nego came forth (Dan. 3:26). The creature that thrives in fire but does not thrive in the air is the salamander. How do we know this? When glass blowers are about to fashion glass objects, they stoke their furnace for seven days and seven nights. When the fire becomes extremely hot, a creature similar to a lizard that is called a salamander comes out. If a man should smear his hand or any part of his body with its blood, fire will not affect that place, for the animal is created in fire. From this fact our sages taught that the fire of Gehenna does not affect the scholar, (deriving this) a fortiori from a salamander. For if the blood of a salamander, which is merely created in fire, can make a man’s body immune to fire, how much more so would the scholar, who observes the law, which is a fiery law, given by One who is a consuming fire, and of whose teacher (is said): The house of Jacob shall be a fire (Obad. 18), be immune from the fire of Gehenna. Hence it is said: How great are Thy works, O Lord! Thy thoughts are very deep (Ps. 92:6).