Joshua 11:15 As the Lord commanded Moses his servant, so did Moses command Joshua, and so did Joshua; he left nothing undone of all that the Lord commanded Moses.
The reason for the success of Joshua’s campaign is that he kept Moses Commandments, which he received from the Lord Himself. Not only did he do, but he also omitted none. Joshua avoided sin by not doing the “Thou shalt nots,” but he also did do the good works.
The Bible speaks of sins of commission and sins of omission, the sins we commit and the good we omit. We confess what we have done and what we have left undone. No one is holy, having done everything perfectly, except for One Man. “For whoever keeps the whole Law but fails in one point has become guilty of all of it [James 2:10].” But the One Man, Jesus Christ, kept the whole law perfectly and left nothing undone, for us. He suffered the penalty for our failure and earned for us the gift of God’s perfect righteousness. By faith in Christ we are accounted wholly righteous and nothing is left undone.
Success in overcoming the enemy, and refusing to accept the Enemy’s accusations, depends on the perfect innocence and complete satisfaction of Christ. Faith receives that gift and is accounted as righteousness. Our response of maintaining, nourishing, growing, and strengthening our faith leads to success in life and enjoying life in the Land (the kingdom of God). Joshua (Jesus) leads us from victory to victory.