Acts 19:18

Many also of those who became believers used to come to confess and to declare their deeds.

Matthew 3:6

and were baptized by him in the river Jordan, confessing their sins.

Romans 10:10

For with the heart man believes unto righteousness, and with the mouth confession is made unto salvation.

1 John 1:9

But if we confess our sins, faithful is he and just to forgive us our sins, and to cleanse us from all wrong-doing.

Treasury of Scripture Knowledge

Summary

And many that believed came, and confessed, and shewed their deeds.

Bible References

Confessed

Matthew 3:6
and were baptized by him in the river Jordan, confessing their sins.
Romans 10:10
For with the heart man believes unto righteousness, and with the mouth confession is made unto salvation.
1 John 1:9
But if we confess our sins, faithful is he and just to forgive us our sins, and to cleanse us from all wrong-doing.