meek - rather, the afflicted godly: the idea is, virtuous suffering (Isa 61:1; Psa 25:9; Psa 37:11) [Barnes].
poor among men - that is, the poorest of men, namely, the pious poor.
rejoice - when they see their oppressors punished (Isa 29:20, Isa 29:21), and Jehovah exhibited as their protector and rewarder (Isa 29:22-24; Isa 41:17; Jam 2:5).