Exodus 5:23
For since I came to Pharaoh to speak in thy name, he hath done evil to this people; neither hast thou delivered thy people at all. For since I came to Pharaoh to speak in thy name, he hath done evil to this people; neither hast thou delivered thy people at all.
Moses returned to the Lord in great distress to complain that since he came to Pharaoh to speak in God's name, Pharaoh had done evil to this people and God had not delivered His people at all. He spoke this after the officers of Israel blamed him and Aaron for their increased suffering, charging that they had made Israel hated and abhorred to Pharaoh and had put a sword in Egyptian hands to slay them. He was greatly distressed because the people charged all their suffering upon him, and he felt almost like murmuring because the Lord delayed to deliver them.
The complaint expresses his distressed sense that his mission had brought increased harm rather than the promised rescue, reflecting the apparent failure of the promised deliverance at that point. Israel expected to be delivered from bondage without any particular trial of faith or suffering on their part, but they were not yet prepared to be delivered, having but little faith and being unwilling to patiently suffer and perseveringly endure affliction until God should work for them a glorious deliverance.
In answer God told Moses that he would soon see what would be done to Pharaoh and assured him that the covenant made with Israel's fathers would be fulfilled.