Charles H. Spurgeon on Psalms 25:13

His soul shall dwell at ease. He expresses with great sweetness spiritual delectation, when he says, "His soul shall tarry in good things." For whatever is carnally sweet yields without doubt a delectation for the time to such as enjoy it, but cannot tarry long with them; because, while by its taste it provokes appetite, by its transit it cheats desire. But spiritual delights, which neither pass away as they are tasted, nor decrease while they refresh, nor cloy while they satiate, can tarry for ever with their possessors. Hugo Victorinus (1130), quoted by J. M. Neale.

Verse 13 (first clause). In the reception of the gifts of God, they do not devour them without feeling a sense of their sweetness, but really relish them, so that the smallest competency is of more avail to satisfy them that the greatest abundance is to satisfy the ungodly. Thus, according as every man is contented with his condition, and cheerfully cherishes a spirit of patience and tranquillity, his soul is said to dwell in good. John Calvin.