During the course of a day, take a moment to read the Bible passage with the short commentary and to reflect on the questions which follow. It is obvious that Peter's words cut his hearers' hea rts to the quick. Repenting means separatin g oneself from the evil we have committed. Peter said that in raising Jesus from the dead, God gave repentance. By restoring Jesus to life, God wiped out the injustice of his being put to death.
Baptism is the guarantee of the reality of our repentance.
The first Christians liked to compa re baptism to the crossing of the Red Sea. The sea closed behind the Hebrews when they left the land of slavery. It stood in the way of Pharaoh's soldiers who wanted to catch them. Through baptism, God places Christ between us and our faults. And that is not only true on the day when we were baptized.