Acts 7 :36

Sea - Large basin.

He brought them out, after that he had showed wonders, etc. - Thus the very person whom they had rejected, and, in effect, delivered up into the hands of Pharaoh that he might be slain, was the person alone by whom they were redeemed from their Egyptian bondage. And does not St. Stephen plainly say by this, that the very person, Jesus Christ, whom they had rejected and delivered up into the hands of Pilate to be crucified, was the person alone by whom they could be delivered out of their spiritual bondage, and made partakers of the inheritance among the saints in light? No doubt they felt that this was the drift of his speech.

Wonders and signs - Miracles, and remarkable interpositions of God. See the notes on Acts 2:22.

In the land of Egypt - By the ten plagues. Exodus 4-12.

In the Red sea - Dividing it, and conducting the Israelites in safety, and overthrowing the Egyptians, Exodus 14.

In the wilderness - During their forty years' journey to the promised land. The wonders or miracles were, providing them with manna daily; with flesh in a miraculous manner; with water from the rock, etc., Exodus 16; Exodus 17; etc.