It should be said of us we do what we do, because we are who we are. Abraham was about to offer Isaac on an altar and he called it worship. Worship is sacrifice. Praise is just flirting. Worship is commitment.
Praise is foreplay, but worship is intimacy.
We must become who God has called us to be, before we will be able to do what He desires us to do. Remember, your charisma can carry you where your character can't keep you. God said if you are faithful with a little, He'll give you more to rule over. First, to his father with his sheep, then to Saul in the army, David remained faithful where he was, and with what he had. David was a kingdom builder, not an empire builder.