1 Kings 20

This passage was pretty straight forward. The Lord reached out to Ahab and proved His existence and sovereignty not only once by twice. Twice, the Lord spoke to Ahab through a prophet and said that He would deliver the Israelites in war as a result, the Israelites would "know that [He] is the Lord". The Lord held true to His promises and delivered the Israelites twice. I feel that this in itself was gracious enough. The Lord already proved to Israel that He is Lord through the events surrounding the kingdom and Elijah. Not only so, but does God really need to ever 'prove' Himself to us? He's God.

Twice, Ahab fails to praise the Lord and give Him the glory in the victory. This is completely ridiculous. How much more proof do you need? I'm not sure what caused Ahab to look past all of the Lord's advances to reveal Himself and for the opportunities for Israel to turn back but it's a bit foolish, isn't it? When the Lord comes knocking, we need to answer.

The second time, Ahab even let the enemy of the kingdom, King Ben-Hadad, go. The Lord had delivered Ben-Hadad to the Israelites in a certain victory and Ahab let him go. In another event, the prophet of the Lord had clear instructions from the Lord in which he passed onto another solider. This solider disobeyed and died. In the same way, Ahab disobeyed the Lord's commands and was ultimately sentenced to death.

We love before a throne of grace but that is no excuse for disobeyed the commands of the Lord.
Romans 5:20b-6:4
But where sin increased, grace increased all the more, 21so that, just as sin reigned in death, so also grace might reign through righteousness to bring eternal life through Jesus Christ our Lord. What shall we say, then? Shall we go on sinning so that grace may increase? 2By no means! We died to sin; how can we live in it any longer? 3Or don't you know that all of us who were baptized into Christ Jesus were baptized into his death? 4We were therefore buried with him through baptism into death in order that, just as Christ was raised from the dead through the glory of the Father, we too may live a new life.