Assumptions....

Judges 16:20 NIV:
Then she called, “Samson, the Philistines are upon you!” He awoke from his sleep and thought, “I’ll go out as before and shake myself free.” But he did not know that the Lord had left him.

Samson was a man chosen and anointed by God, even before he was born, to lead the deliverance of Israel from the Philistines. His parents had sought the Lord for a child and here he was, strong, mighty in power and gifted with strength and God's Spirit. There's just a few things God cannot do- go against the exercise of our own free will or force us to do his will. We must choose to do his will by our own free will.
Here was a man chosen by God to make a difference, who couldn't make a difference between right and wrong choices in marriage. Here was a man that was brought up in God, being taught about God and his expectations for his life, but who would keep secrets from his parents, while immediately telling heathen women the same secrets.
Here we see a man who only remembered God at the times of crises, living his life on physical terms only, trusting that just as it had worked for him in the past, it would work for him again. Unfortunately, God's power had left him and he was just like any ordinary man.
The lessons are numerous: there can never be unity between 2 opposites. As long as you are being inspired by different thoughts, attitudes or convictions, you can never agree. I must get my convictions grounded on the Word of God and let it be the guide, light and inspiration for my life. Anything else is counter-productive.
Secondly, there is a grave danger in assumptions. Samson was used to sleeping this night with a harlot and waking up the next morning to do exploits still. God's power was evident upon him but he took it for granted even till his eyes were gouged out. This race before us must be run with full consciousness of our fraility and need for total dependence on God. There can't be room for assumptions; the desire to run well and end well must be our topmost priority.
Watch your ways and your hearts. Let the past be a lesson to help guide the future but do not be limited or bound by the past. All achievements are aready past, today holds its own challenges and it is only God that can help to overcome and end well.
Rejoice, for his time of favour is here.