“Repent and be baptized every one of you in the name of Jesus Christ for the forgiveness of your sins, and you will receive the gift of the Holy Spirit.” Acts 2:38
These are words from Peter to a large group of people on the day of Pentecost just after he had delivered his first sermon. God had opened the ears of about three thousand people that day and they believed and realized they were in real trouble with God. They asked what they should do, so Peter told them, “Repent and be baptized”. We read those words and many times don’t even think about what they mean.
What does it mean to repent? Well believe it or not, “Merriam-Webster” is actually the best place to go for a Biblical definition. Here is it’s number one definition of repent,
“to turn from sin and dedicate oneself to the amendment of one’s life.”
That is a perfect definition.
Now all we have to do is figure out what sin is. If you go to M-W for that definition, their number two answer is the best, “transgression of the law of God.”
Jesus said "If you love me, you will keep my commandments.” Jn14:15
If we know or find out we have not, we need to repent.