Exodus 9:2

For if you refuse to let them go and still hold them,

But if you refuse to let them go, behold, I will plague all your country with frogs.

and I say to you, "Let my son go that he may serve me." If you refuse to let him go, behold, I will kill your firstborn son.'"

For if you refuse to let my people go, behold, tomorrow I will bring locusts into your country,

"But if you will not listen to me and will not do all these commandments,

"And if by this discipline you are not turned to me but walk contrary to me,

"But if in spite of this you will not listen to me, but walk contrary to me,

God is a righteous judge, and a God who feels indignation every day.

But God will strike the heads of his enemies, the hairy crown of him who walks in his guilty ways.

but if you refuse and rebel, you shall be eaten by the sword; for the mouth of the LORD has spoken."

but for those who are self-seeking and do not obey the truth, but obey unrighteousness, there will be wrath and fury.

I gave her time to repent, but she refuses to repent of her sexual immorality.

They were scorched by the fierce heat, and they cursed the name of God who had 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,