Isa 1:29

1:29 ashamed . . . blush. What people hold in honor will be exposed as worthless. Sinners will see how wrong they have been when they come to ruin (26:11; 44:9, 11; 65:13; 66:5).

oaks . . . gardens. These were places of fertility rites and pagan worship that the people had chosen in preference to serving God (65:3 and note; 66:17).