II Kings 13:14-19
What was the problem? Joash had done what he had been told, hadn't he? Of course he had! But then he stopped. He continued with what he had been told until he felt he had beaten the ground enough times. The results were not what he would have hoped for. Instead of ending when he felt he had done enough, he should have continued until the Lord felt he had done enough. Other kings had a similar problem. They may have served the Lord, but not wholeheartedly. In II Chronicles 25:2, Amaziah is described this way. In the days of Moses, the Israelites are described this way (Numbers 32:11), and it is for this reason that they wandered the wilderness for forty years.
The question for us is this: are we serving God wholeheartedly? Or do we stop when we feel we have done enough? We can see the example set for us in study of God's word (Acts 17:11), but do we only study a couple times a week? Or do we study on a regular, constant basis, focusing on God's word? We know we are to assemble (Hebrews 10:25), but do we stop when we have assembled once a week? Or do we wholeheartedly assemble at every opportunity? We know we are to pray (I Thessalonians 5:17), but do we stop after praying only at the beginning of meals, and perhaps before we go to bed? Or do we endeavor to pray constantly throughout our day? The same questions apply for all things that we are to do in service to God: helping others, contributing on the Lord's Day, teaching, and so on.
Are we serving wholeheartedly. We should be. When Christ was asked what the most important commandment was, it was this answer He gave:
Jesus said unto him, Thou shalt love the Lord thy God with all thy heart, and with all thy soul, and with all thy mind. This is the first and great commandment.
Matthew 22:37-38
Anything less is not enough. Anything less is halfhearted service and love. Anything less is unacceptable. We cannot approach our worship and walk with God with a “eh, that's good enough,” sort of attitude. We must be zealous and fervent in wholeheartedly following the Lord. If we are, we can be like Joshua and Caleb, who were commended for their wholehearted service (Numbers 32:12) and were allowed to enter the promised land.