I don't know about you, but it sounds to me like Samson had a bit of a pride problem too. Did you catch his response to Delilah? "No big deal. I'll just go out and defeat them like I always do." Hmm, the only problem was that Samson wasn't the one who had defeated the enemy before. It was God working through him, and God wasn't taking part in this particular fight. Unfortunately, Samson was too full of himself to notice that he was fighting the battle all alone.
Obviously, the results of Samson's blindness to these things led to his literal blindness and incarceration. He spent the rest of his days as a slave, ridiculed and mistreated. Fortunately, in the end, Samson began to see things clearly. While he had been blind to so many things, he wasn't blind to the fact that God is good, merciful and forgiving.
Despite all that Samson had done, the Lord still heard and honored his request. He gave Samson one more moment of glory. He lent Samson His strength to win one last battle. As He has done so often in our lives, God proved Himself gracious and merciful. What a blessing!
For thou, Lord, art good, and ready to forgive; and plenteous in mercy unto all them that call upon thee. - Psalm 86:5