Isaiah 51:9

Awake, awake, put on strength, O arm of the LORD! Awake as in the ancient days, In the generations of old. Are You not the arm that cut Rahab apart, And wounded the serpent?

Surrounding context

51:8 For the moth will eat them up like a garment, And the worm will eat them like wool; But My righteousness will be forever, And My salvation from generation to generation."

51:9 Awake, awake, put on strength, O arm of the LORD! Awake as in the ancient days, In the generations of old. Are You not the arm that cut Rahab apart, And wounded the serpent?

51:10 Are You not the One who dried up the sea, The waters of the great deep; That made the depths of the sea a road For the redeemed to cross over?

Translation and sources