Shall be in his house; possessed by him whilst he lives, and continued in his family after his death. His righteousness, i.e. the fruit or reward of his righteousness, which is God's blessing upon his estate; for the work is oft put for the reward of it, as in the Hebrew, Leviticus 19:13 Job 7:2 Psalms 109:20. And righteousness may be here taken for his bounty or charity, as it is below, Psalms 112:9, and as this Hebrew word is frequently taken.
Related Commentaries of Psalms 112:3
Psalms 112:3
3 Wealth and riches shall be in his house: and his righteousness endureth for ever.