Psalms 94:12

“Blessed is the man whom thou chastenest, O Lord, etc.] Much more happy now, and hereafter, than the proud insulting persecutor of him; he is chastened of the Lord, that he might not be condemned with the world; he is chastened not in wrath, but in love; not with the chastisement of a cruel one, nor indeed of a magistrate nor a master; but of a tenderhearted father, who always does it for his profit and advantage, and therefore is he “blessed”, or happy; for these chastenings are tokens of God’s love, evidences of sonship, or of a man’s being an adopted child of God; are for, and do work for good, either temporal, spiritual, or eternal, and even in every sense; and, besides, the Lord grants…”

“Blessed is the man whom thou chastenest, O Lord - “Happy the man;” or “Oh the blessedness of the man.” See the notes at Psalms 1:1. The word here rendered “chastenest” does not mean to chasten in the sense of afflicting or punishing. It means here to instruct; to warn; to admonish; to exhort. So the word is employed in Proverbs 9:7; Job 4:3; Psalms 16:7. The meaning here is, that the man is blessed or happy whom God so “instructs, warns, or teaches,” that he understands the principles of the divine administration. Such a man will see reasons for confidence in him in trouble, and for calmness of mind until punishment is brought upon his enemies. And teachest him out of thy law - Causest him,…”

“Blessed - Those afflictions which are accompanied with Divine instructions are great and true blessings. Psalms 94:15”

“94:12-15 True to his nature, the Lord rewards those who live by his wise instruction and makes them happy according to his promises.”

“Blessed: Psa 119:67, Psa 119:71; Job 5:17; Pro 3:11; Co1 11:32; Heb 12:5-11 teachest: Job 33:16-25; Mic 6:9; Rev 3:19 Psalms 94:13”

“The fourth strophe praises the pious sufferer, whose good cause God will at length aid in obtaining its right. The "blessed" reminds one of Psa 34:9; Psa 40:5, and more especially of Job 5:17, cf. Pro 3:11. Here what are meant are sufferings like those bewailed in Psa 94:5., which are however, after all, the well-meant dispensations of God. Concerning the aim and fruit of purifying and testing afflictions God teaches the sufferer out of His Law (cf. e.g., Deu 8:5.), in order to procure him rest, viz., inward rest (cf. Jer 49:23 with Isa 30:15), i.e., not to suffer him to be disheartened and tempted by days of wickedness, i.e., wicked, calamitous days (Ew. 287, b), until (and it will…”