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 Psa_107:9Pro_10:2Dan_4:27.