1 Samuel 20:9

And Jonathan said, Far be it from thee; for, if I knew with certainty that evil were determined by my father to come upon thee, would I not tell it thee?

1 Samuel 19:2

But Jonathan Saul's son delighted much in David. And Jonathan told David, saying, Saul my father seeks to kill thee; and now, I pray thee, take heed to thyself in the morning, and abide in a secret place and hide thyself;

1 Samuel 20:38

And Jonathan cried after the lad, Make speed, haste, stay not! And Jonathan's lad gathered up the arrows, and came to his master.

1 Samuel 20:42

And Jonathan said to David, Go in peace, forasmuch as we have both of us sworn in the name of Jehovah, saying, Jehovah be between me and thee, and between my seed and thy seed for ever! And he arose and departed; and Jonathan went into the city.

Treasury of Scripture Knowledge

Summary

And Jonathan said, Far be it from thee: for if I knew certainly that evil were determined by my father to come upon thee, then would not I tell it thee?

Bible References

Then would

1 Samuel 20:38
And Jonathan cried after the lad, Make speed, haste, stay not! And Jonathan's lad gathered up the arrows, and came to his master.
1 Samuel 19:2
But Jonathan Saul's son delighted much in David. And Jonathan told David, saying, Saul my father seeks to kill thee; and now, I pray thee, take heed to thyself in the morning, and abide in a secret place and hide thyself;