And I have given you a land for which ye did not labour, and cities which ye built not, and ye dwell in them; of the vineyards and oliveyards which ye planted not do ye eat.  Now therefore fear the Lord , and serve him in sincerity and in truth: and put away the gods which your fathers served on the other side of the flood, and in Egypt; and serve ye the Lord .  And if it seem evil unto you to serve the Lord , choose you this day whom ye will serve; whether the gods which your fathers served that were on the other side of the flood, or the gods of the Amorites, in whose land ye dwell: but as for me and my house, we will serve the Lord .
Everyone one of us has a choice to make…who will we serve?
 And the people answered and said, God forbid that we should forsake the Lord , to serve other gods;  For the Lord our God, he it is that brought us up and our fathers out of the land of Egypt, from the house of bondage, and which did those great signs in our sight, and preserved us in all the way wherein we went, and among all the people through whom we passed:  And the Lord drave out from before us all the people, even the Amorites which dwelt in the land: therefore will we also serve the Lord ; for he is our God.  And Joshua said unto the people, Ye cannot serve the Lord : for he is an holy God; he is a jealous God; he will not forgive your transgressions nor your sins.  If ye forsake the Lord , and serve strange gods, then he will turn and do you hurt, and consume you, after that he hath done you good.  And the people said unto Joshua, Nay; but we will serve the Lord.
 And Joshua said unto the people, Ye are witnesses against yourselves that ye have chosen you the Lord , to serve him. And they said, We are witnesses.  Now therefore put away, said he , the strange gods which are among you, and incline your heart unto the Lord God of Israel.  And the people said unto Joshua, The Lord our God will we serve, and his voice will we obey.  So Joshua made a covenant with the people that day, and set them a statute and an ordinance in Shechem.  And Joshua wrote these words in the book of the law of God, and took a great stone, and set it up there under an oak, that was by the sanctuary of the Lord .  And Joshua said unto all the people, Behold, this stone shall be a witness unto us; for it hath heard all the words of the Lord which he spake unto us: it shall be therefore a witness unto you, lest ye deny your God.  So Joshua let the people depart, every man unto his inheritance.  And it came to pass after these things, that Joshua the son of Nun, the servant of the Lord , died, being an hundred and ten years old.
 And when Joshua had let the people go, the children of Israel went every man unto his inheritance to possess the land.  And the people served the Lord all the days of Joshua, and all the days of the elders that outlived Joshua, who had seen all the great works of the Lord , that he did for Israel.  And Joshua the son of Nun, the servant of the Lord , died, being an hundred and ten years old.  And they buried him in the border of his inheritance in Timnath-heres, in the mount of Ephraim, on the north side of the hill Gaash.  And also all that generation were gathered unto their fathers: and there arose another generation after them, which knew not the Lord , nor yet the works which he had done for Israel.  And the children of Israel did evil in the sight of the Lord , and served Baalim:  And they forsook the Lord God of their fathers, which brought them out of the land of Egypt, and followed other gods, of the gods of the people that were round about them, and bowed themselves unto them, and provoked the Lord to anger.
Joshua knew God and had a relationship with Him
1) Know God
2) Teach your children diligently