Samson's victory

Judges 15:14-16 NIV

As he approached Lehi, the Philistines came toward him shouting. The Spirit of the  Lord  came powerfully upon him. The ropes on his arms became like charred flax, and the bindings dropped from his hands.  Finding a fresh jawbone of a donkey, he grabbed it and struck down a thousand men.    Then Samson said, “With a donkey’s jawbone I have made donkeys of them. With a donkey’s jawbone I have killed a thousand men.”

Here, Samon judged everyone of the Philistines and killed them for the oppression that have given Israel.moreover, he also achieved justice by giving the Philistines what they deserve.

Note: this is the Old Testament, so God's judgement is quick and harsh. From the previous verses, we finally know that this is an incident the God wants to set up, because He wants to use Samson to judge the Philistines. This is clearly seen from:

(His parents did not know that this was from the  Lord , who was seeking an occasion to confront the Philistines; for at that time they were ruling over Israel.) (Judges 14:4 NIV)

As he approached Lehi, the Philistines came toward him shouting. The Spirit of the  Lord  came powerfully upon him. The ropes on his arms became like charred flax, and the bindings dropped from his hands.  Finding a fresh jawbone of a donkey, he grabbed it and struck down a thousand men. (Judges 15:14, 15 NIV)

It is clear from judges 14:4 that this is an occasion that God wants to use Samson to confront and judge Israel. However, being said so, what Samson did was not Godly:

Do not be yoked together with unbelievers. For what do righteousness and wickedness have in common? Or what fellowship can light have with darkness?  What harmony is there between Christ and Belial ? Or what does a believer have in common with an unbeliever?  What agreement is there between the temple of God and idols? For we are the temple of the living God. As God has said: “I will live with them and walk among them, and I will be their God, and they will be my people.” (2 Corinthians 6:14-16 NIV)

Clearly, we should not get ourselves involved with non believers.
However, despite of our sin(like Samson's), God still can move mightily. Imagine a scenario in which Samson chose an Israelite wife instead, God would move even more powerfully.

It is also clear that during the whole occasion, the power of God was with Samson, because if he did not have It, he would not have killed so many men with just a donkey's jawbone, along with the breaking of the ropes.

Today, Jesus had died for us, so our sins is already paid for with Jesus's blood. But let's not take that for granted and continue to walk towards Him and away from sin.