Former examples of God’s deliverance are generalized: as He has done, so He will do.
from Bashan - the farthest region; and -
depths of the sea - the severest afflictions. Out of all, God will bring them. The figures of Psa 68:23 denote the completeness of the conquest, not implying any savage cruelty (compare 2Ki 9:36; Isa 63:1-6; Jer 15:3).