Isa 29:20

29:20 ruthless. These people are the powerful and tyrannical oppressors of this world (13:11; 25:3–5; 29:5; 49:25; cf. Ps. 37:35; 86:14; Ezek. 28:7; 30:11; 32:12).

scoffer. This designation, common in wisdom literature, means a hardened and cynical person (28:14; Ps. 1:1; Prov. 1:22; 3:34; 9:7, 8; 21:24).

watch to do evil. Such a person is identified in v. 21.