Midrash su Salmi 19:1

[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. ...

R. Cahana, in the name of R. Ishmael, the son of R. Jose, said: "What is the meaning of the passage (Ps. 19, 1) To the chief musician, a Psalm of David; i.e., the word Lamnatze'ach means: Sing unto Him whosoever is happy even when victorious over Him. Come and see how the nature of the Holy One, praised be He! differs from the nature of frail man. The nature of frail man is to grieve if anyone gets defeated, but if the Holy One, praised be He! is defeated. He is happy and rejoiceth, as it is said (Ib. 106, 23) He therefore spoke of destroying them, had not Moses His elect, etc. [Hence he called Moses His elect, although he appeased the Lord's anger]." R. Cahana also said, in the name of R. Ishmael, the son of R. Jose, and, according to the Rabbis, he said it in the name of R. Simon b. Lakish, who quoted R. Juda, the Nasi: "What is the meaning of the passage (Ez. 1, 8) And hands of man [were visible] from beneath their wings. It is written Yado (his hand, in the singular). This alludes to the hand of the Holy One, praised be He! which is spread out beneath the wings of the Chayoth to accept those who repent and are rejected by the Divine attribute of justice."