For instance, he was always asking God for his next move. Ol' David had an opinion for sure, but he was constantly asking God for His opinion. Smart move. Take, for example, this instance right after he was made king of all Israel. 2 Samuel 5:17-25
Should we, God? God offers His assurance that victory will come Dave's way. This is in stark contrast to what happened when David didn't ask God for His guidance. Just ask Uzzah how that worked out (2 Samuel 6).
When we put God first, including asking Him for guidance in all our daily tasks, life just goes better. We don't come second because we're losing. We come second because God should be first. In the end, it works out better, for everyone.