1 Samuel 19:1

Saul told Jonathan his son and all his servants to kill David. But Jonathan was very fond of David.

1 Samuel 18:1

David finished talking to Saul. Jonathan became David's closest friend. He loved David as much as he loved himself.

1 Samuel 18:9

He was jealous and suspicious of David from that day on.

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 things that are done under the sun. There is one event that comes to all. The heart of the sons of men is full of evil. Madness is in their heart while they live. After that they go to the dead (die).
Jeremiah 9:3
They bend their tongue like their bow. Lies and not truth prevail in the land. They move from evil to evil. They do not know me, says Jehovah.
2 Timothy 3:13
But evil men and impostors will become worse and worse, deceiving and being deceived.