1 Samuel 19:23
And he went thither to Naioth in Ramah: and the Spirit of God was upon him also, and he went on, and prophesied, until he came to Naioth in Ramah.
Cross-reference
1 Samuel 19:20
Parallel
Verse 23 repeats the pattern from verse 20: as the messengers prophesied, so now Saul himself prophesies when the Spirit comes.
1 Samuel 10:10
Parallel
In 1 Samuel 10:10, the same Spirit came upon Saul when he first prophesied among prophets — a parallel event in his life.
1 Samuel 10:6
Prophetic fulfillment
1 Samuel 10:6 predicted the Spirit would come on Saul and he would prophesy — this is that pattern repeated.
Numbers 24:2
Parallel
Numbers 24:2 says 'the Spirit of God came upon him' of Balaam — identical phrasing to Saul's experience here.