1 Samuel 19:1

Now Saul told his son Jonathan and all his servants to kill David, but Jonathan, Saul’s son, greatly delighted in David.

1 Samuel 18:1

When David had finished speaking to Saul, the soul of Jonathan was bonded to the soul of David, and Jonathan loved him as himself.

1 Samuel 18:9

Saul looked at David with suspicion [and jealously] from that day forward.

Treasury of Scripture Knowledge

Summary

And Saul spake to Jonathan his son, and to all his servants, that they should kill David.

Bible References

And saul

Ecclesiastes 9:3
This evil is in all that is done under the sun, that one fate comes to all. Also, the hearts of the sons of men are full of evil, and madness is in their hearts while they live, and afterwards they go to the dead.
Jeremiah 9:3

“They bend their tongue like their bow;
[Their] lies and not truth prevail and grow strong in the land;
For they proceed from evil to evil,
And they do not know and understand and acknowledge Me,” says the Lord.
2 Timothy 3:13
But evil men and impostors will go on from bad to worse, deceiving and being deceived.