'Dirt' in the Bible

Now on the twenty-fourth day of this month the sons of Israel assembled with fasting, in sackcloth and with dirt upon them.

“My flesh is clothed with worms and a crust of dirt,My skin hardens and runs.

Corresponding to that, baptism now saves you—not the removal of dirt from the flesh, but an appeal to God for a good conscience—through the resurrection of Jesus Christ,