Bless thee, instrumentally, as ministers are said to convert and save sinners, to wit, bring down the blessing of God upon thee by his prayers; for though his prayers, if he be not a good man, shall not avail for his own behalf, yet they shall avail for thy benefit. Righteousness unto thee before the Lord, i.e. esteemed and accepted by God as a work of righteousness, or holiness, or goodness and mercy, which oft is called righteousness, as Psalms 107:9 Proverbs 10:2 Daniel 4:27.
Related Commentaries of Deuteronomy 24:13
Deuteronomy 24:13
13 In any case thou shalt deliver him the pledge again when the sun goeth down, that he may sleep in his own raiment, and bless thee: and it shall be righteousness unto thee before the LORD thy God.