1 Samuel 23:2, 4-5 Therefore David enquired of the Lord, saying, Shall I go and fight these Philistines?….Then David enquired of the Lord yet again. And the Lord answered him….So David and his men went to Keilah, and fought with the Philistines.
David, as a man after God’s own heart, sought to know the will of God before important matters. He asked the Lord what He wanted him to do. He trusted God to guide him, rather than going ahead in his own pride and presumption. He was humble enough to know that God knew better than He did, what to do.
The Lord answered David, and said he should go up against the Philistines for He would be with him to deliver the enemy into his hand. So David fought the Philistines and smote them with a great slaughter. David could have presumed upon his own strength and wisdom to go into battle, but he was humble enough to ask the Lord about it first.
We don’t have to ask God about every little decision, but it is good and proper to pray about many things before jumping into them just because we feel like it. Of course, it requires humility and faith to inquire of the Lord and expect Him to answer our prayer. If the Lord is in a thing, it works out. If not, not so much.