Romans 2:4-5

Or, do you despise the abundance of God's kindness and tolerance and patience [toward you], not realizing that His kindness is intended to cause you to repent? [i.e., to change your hearts and lives].

Romans 9:22

What if God [did] patiently put up with people who deserved His wrath and [who were] ready for destruction, even though He was willing to demonstrate His wrath and power?

Treasury of Scripture Knowledge

Summary

And Moses and Aaron did all these wonders before Pharaoh: and the LORD hardened Pharaoh's heart, so that he would not let the children of Israel go out of his land.

Bible References

The lord

Romans 2:4
Or, do you despise the abundance of God's kindness and tolerance and patience [toward you], not realizing that His kindness is intended to cause you to repent? [i.e., to change your hearts and lives].
Romans 9:22
What if God [did] patiently put up with people who deserved His wrath and [who were] ready for destruction, even though He was willing to demonstrate His wrath and power?