Exodus 9:2

If you refuse to let them go and continue to hold them in slavery,

But if you refuse to let them go, behold, I will afflict your whole territory with frogs.

So I said to you: 'Let My son go that he may serve me. But you have refused to let him go. Behold, I will kill your son, your firstborn.'

If you refuse to let my people go, behold, tomorrow I will bring locusts into your territory.

If you will not listen to me and obey all these commandments,

If this discipline does not help and you still resist,

If in spite of this you do not listen to me and still resist me,

God is a righteous judge and a God who has indignation every day.

Certainly, God will crush the heads of his enemies and destroy even the hair on the heads of those who continue to be guilty.

Refuse and rebel and swords will devour you. Jehovah has spoken.

Those who are contentious, and do not obey the truth, but obey unrighteousness, will receive wrath and indignation.

I gave her time to repent, and she does not want to repent of her immorality.

Men were scorched with great heat. They blasphemed the name of God, who has power over these plagues. They did not repent and give him glory.

Treasury of Scripture Knowledge

For if thou refuse to let them go, and wilt hold them still,