Samson and the Spirit of God

Samson's story in Judges chapter 13 to chapter 16 is a very interesting read. As a child I always thought the locks was what gave him strength Judges 16:19 King James Version (KJV)

19 And she made him sleep upon her knees; and she called for a man, and she caused him to shave off the seven locks of his head; and she began to afflict him, and his strength went from him.

But after re reading and studying Samson more I seen the Spirit of God giving Samson his true strength:

Judges 14:5-6 King James Version (KJV)

5 Then went Samson down, and his father and his mother, to Timnath, and came to the vineyards of Timnath: and, behold, a young lion roared against him.

6 And the Spirit of the Lord came mightily upon him, and he rent him as he would have rent a kid, and he had nothing in his hand: but he told not his father or his mother what he had done.

Judges 14:16-19 King James Version (KJV)

16 And Samson's wife wept before him, and said, Thou dost but hate me, and lovest me not: thou hast put forth a riddle unto the children of my people, and hast not told it me. And he said unto her, Behold, I have not told it my father nor my mother, and shall I tell it thee?

17 And she wept before him the seven days, while their feast lasted: and it came to pass on the seventh day, that he told her, because she lay sore upon him: and she told the riddle to the children of her people.

18 And the men of the city said unto him on the seventh day before the sun went down, What is sweeter than honey? And what is stronger than a lion? and he said unto them, If ye had not plowed with my heifer, ye had not found out my riddle.

19 And the Spirit of the Lord came upon him, and he went down to Ashkelon, and slew thirty men of them, and took their spoil, and gave change of garments unto them which expounded the riddle. And his anger was kindled, and he went up to his father's house.

Judges 15:12-14 King James Version (KJV)

12 And they said unto him, We are come down to bind thee, that we may deliver thee into the hand of the Philistines. And Samson said unto them, Swear unto me, that ye will not fall upon me yourselves.

13 And they spake unto him, saying, No; but we will bind thee fast, and deliver thee into their hand: but surely we will not kill thee. And they bound him with two new cords, and brought him up from the rock.

14 And when he came unto Lehi, the Philistines shouted against him: and the Spirit of the Lord came mightily upon him, and the cords that were upon his arms became as flax that was burnt with fire, and his bands loosed from off his hands.