The Kindness and Discipline of Our Heavenly Father
Hebrews 12 v 5-6
My son do not despise the chastening of the Lord nor be discouraged when you are rebuked by Him; for whom the lord loves he chastens, and he scourges every son whom he receives.
Proverbs 3 v 12
For the lord disciplines the one he loves, as does a father the son he delights in.
Exodus 9 v 15-16
Now if I had stretched out my hand and struck you and your people with pestilence, then you would have been cut off from the earth. But indeed for this purpose I have raised y0u up that I may show my power in you, that my name may be declared in all the earth.
In Exodus 9, the Lord is dialoguing with Moses, about the seventh plague that He was about to release upon Pharaoh and the Egyptians. The Lord makes it clear, that if He (the Lord) had decided to deal with Pharoah on day one, He could have completely removed him and his people, from the Earth forever; without bothering with any plagues at all. He really did not need to send plagues to seal the deliverance of His people Israel. The reason the Lord sent the plagues, was to show His power, judgment, mercy and differentiation of the Godly from the wicked. He intended to give a clear message to everyone on earth, from that generation to the last generation, that He is all powerful, and able to deliver His people from the most horrendous oppression.