Bless the LORD, O house of Israel: bless the LORD, O house of Aaron: Bless the Lord. O house, etc. - See similar verses, Psalms 115:9-13 (note), and the notes there.
Related Commentaries of Psalms 135:19
Psalms 135:19
19 Bless the LORD, O house of Israel: bless the LORD, O house of Aaron: