I have surely seen. Literally "Seeing I have seen"—an expression implying continuance. On the force of the anthropomorphic terms "seeing, hearing, knowing," as used of God, see the comment on Exodus 2:24-25.
Taskmasters. Not the general superintendents of Exodus 1:11, but subordinate officials, who stood over the labourers and applied the rod to their backs. (See above, Exodus 2:11.