The Character of God: God kills the wicked

Genesis 38 vs 7

And Er, Judah’s firstborn, was wicked in the sight of the Lord; and the Lord slew him.

The Bible says God killed Er because of his wickedness.
The Bible does not give an account of the wickedness Er did.
God hates wickedness.
The Bible say God slay Er. This is like a slaughter, and it means Er would have died a painful death.
If you are into the act of wickedness, you are at the risk of being slaughtered by God.