BabylonianTalmud, Sotah 14a

R. Hama son of R. Hanina further said: What means the text: "You shall walk after God" (Deuteronomy 13)? Is it, then, possible for a human being to walk after God; for has it not been said: "For God is a devouring fire" (Deuteronomy 4)? But [the meaning is] to walk after the attributes of the Holy One. Just as God clothes the naked, as it says, "And God made garments of skins for Adam and his wife, and clothed them" (Genesis 3), so do you also clothe the naked. The Holy One, blessed be God, visited the sick, for it is written: "And God appeared to him by the oaks of Mamre" (Genesis 18), so do you also visit the sick. The Holy One, blessed be God, comforted mourners, for it is written: "And it came to pass after the death of Abraham, that God blessed Isaac his son" (Genesis 25), so do you also comfort mourners. The Holy one, blessed be God, buried the dead, for it is written: "And God buried him in the valley" (Deuteronomy 34), so do you also bury the dead. [Soncino translation]