5 The Lord your God will push them back before you and drive them out of your sight. And you shall possess their land, just as the Lord your God promised you. 6 Therefore, be very strong to keep and to do all that is written in the Book of the Law of Moses, turning aside from it neither to the right hand nor to the left, 7 that you may not mix with these nations remaining among you or make mention of the names of their gods or swear by them or serve them or bow down to them, 8 but you shall cling to the Lord your God just as you have done to this day. 9 For the Lord has driven out before you great and strong nations. And as for you, no man has been able to stand before you to this day. 10 One man of you puts to flight a thousand, since it is the Lord your God who fights for you, just as he promised you.
11 Be very careful, therefore, to love the Lord your God.
Matthew Henry's Commentary on Joshua 23:5-11
Commentary on Joshua 23:1-10
(Read Joshua 23:1-10)
Joshua was old and dying, let them observe what he said now. He put them in mind of the great things God had done for them in his days. He exhorted them to be very courageous. Keep with care, do with diligence, and regard with sincerity what is written. Also, very cautiously to endeavour that the heathen idolatry may be forgotten, so that it may never be revived. It is sad that among Christians the names of the heathen gods are so commonly used, and made so familiar as they are. Joshua exhorts them to be very constant. There might be many things amiss among them, but they had not forsaken the Lord their God; the way to make people better, is to make the best of them.
Commentary on Joshua 23:11-16
(Read Joshua 23:11-16)
Would we cleave to the Lord, we must always stand upon our guard, for many a soul is lost through carelessness. Love the Lord your God, and you will not leave him. Has God been thus true to you? Be not you false to him. He is faithful that has promised, Hebrews 10:23. The experience of every Christian witnesses the same truth. Conflicts may have been severe and long, trials great and many; but at the last he will acknowledge that goodness and mercy followed him all the days of his life. Joshua states the fatal consequences of going back; know for a certainty it will be your ruin. The first step would be, friendship with idolaters; the next would be, marrying with them; the end of that would be, serving their gods. Thus the way of sin is down-hill, and those who have fellowship with sinners, cannot avoid having fellowship with sin. He describes the destruction he warns them of. The goodness of the heavenly Canaan, and the free and sure grant God has made of it, will add to the misery of those who shall for ever be shut out from it. Nothing will make them see how wretched they are, so much, as to see how happy they might have been. Let us watch and pray against temptation. Let us trust in God's faithfulness, love, and power; let us plead his promises, and cleave to his commandments, then we shall be happy in life, in death, and for ever.