1 Samuel 20:12
And Jonathan said unto David, O Lord God of Israel, when I have sounded my father about to morrow any time, or the third day, and, behold, if there be good toward David, and I then send not unto thee, and shew it thee;
Cross-reference
1 Samuel 20:2
Contrast
In 1 Samuel 20:2, Jonathan was sure his father would tell him; now he plans to investigate — showing his change in perception.
1 Samuel 23:18
Parallel
In 1 Samuel 23:18, they make a covenant before the Lord — the same divine witness invoked here for their earlier pact.
Proverbs 25:3
Contrast
Proverbs 25:3 states a king's heart is unsearchable — contrasting with Jonathan's attempt to search Saul's heart.