Do with all your heart

18 Then he said, “Take the arrows,” and the king took them. Elisha told him, “Strike the ground.” He struck it three times and stopped. 19 The man of God was angry with him and said, “You should have struck the ground five or six times; then you would have defeated Aram and completely destroyed it. But now you will defeat it only three times.” 2 Kings 13:18

If youw want to do something, do it to the fullest and not half heartedly.