"By faith they passed through the Red Sea as by dry land: which the Egyptians assaying
to do were swallowed up" (Heb. 11:29 ASV). The Israelites crossed the Red Sea "by
faith," but they were not on the other side the moment they believed. They spent a night
of anxious toil and great fear before they could sing the song of deliverance on the other
side. Here the phrase "by faith" spans the Red Sea, and includes every step they took
By some it is thought that because Paul says we are "justified by faith" (Rom. 5:1) that baptism is excluded. But the phrase "by faith," instead of excluding the acts of faith, which, in reality, make faith perfect, actually includes obedience. And it can be plainly shown that "by faith" in this case includes baptism. Paul says, "For I would not, brethren, have you ignorant, that our fathers were all under the cloud, and all passed through the sea; and were all baptized unto Moses in the cloud and in the sea" (1 Cor. 10:1-2 ASV).
They crossed the Red Sea "by faith," and in crossing they were baptized. "By faith" includes what was done in crossing. But in crossing they were baptized. Therefore, "by faith," in this example includes baptism.