Matthew 3:10

Even now the ax is laid at the root of the trees, and every tree therefore that does not bear good fruit is cut down and thrown into the fire.

Acts 3:19

Repent therefore, and turn again, so that your sins may be wiped out, that times of refreshing may come from the presence of the Lord,

Treasury of Scripture Knowledge

Summary

If he turn not, he will whet his sword; he hath bent his bow, and made it ready.

Bible References

If

Matthew 3:10
Even now the ax is laid at the root of the trees, and every tree therefore that does not bear good fruit is cut down and thrown into the fire.
Acts 3:19
Repent therefore, and turn again, so that your sins may be wiped out, that times of refreshing may come from the presence of the Lord,