In Judges 14:6 (NASB)
And the Spirit of the Lord rushed upon him, so that he tore it apart as one tears apart a young goat, though he had nothing in his hand; but he did not tell his father or mother what he had done.
In Judges 15:14 (NASB)
14 When he came to Lehi, the Philistines shouted as they met him. And the Spirit of the Lord rushed upon him so that the ropes that were on his arms were like flax that has burned with fire, and his restraints dropped from his hands.
Yet in Judges 16:3 (NASB) there's no mention of the strength coming from God
Now Samson lay asleep until midnight, and at midnight he got up and took hold of the doors of the city gate and the two doorposts, and pulled them up along with the bars; then he put them on his shoulders, and carried them up to the top of the mountain which is opposite Hebron.
Does that mean Samson did that by his own strength?