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.

Wesley's Notes

24:26 These words - That is, this covenant or agreement of the people with the Lord. In the book - That is, in the volume which was kept in the ark, Deut 31:9,26, whence it was taken and put into this book of Joshua: this he did for the perpetual remembrance of this great and solemn action, to lay the greater obligation upon the people to be true to their engagement; and as a witness for God, against the people, if afterward he punished them for their defection from God, to whom they had so solemnly and freely obliged themselves. Set it up - As a witness and monument of this great transaction, according to the custom of those ancient times. Possibly this agreement was written upon this stone, as was then usual. By the sanctuary - That is, near the place where the ark and tabernacle then were; for tho' they were forbidden to plant a grove of trees near unto the altar, as the Gentiles did, yet they might for a time set up an altar, or the ark, near a great tree which had been planted there before.

Jamieson-Fausset-Brown Bible Commentary

26. Joshua wrote these words in the book of the law of God-registered the engagements of that solemn covenant in the book of sacred history.

took a great stone-according to the usage of ancient times to erect stone pillars as monuments of public transactions.

set it up there under an oak-or terebinth, in all likelihood, the same as that at the root of which Jacob buried the idols and charms found in his family.

that was by the sanctuary of the Lord-either the spot where the ark had stood, or else the place around, so called from that religious meeting, as Jacob named Beth-el the house of God.

Matthew Henry's Concise Commentary

24:15-28 It is essential that the service of God's people be performed with a willing mind. For LOVE is the only genuine principle whence all acceptable service of God can spring. The Father seeks only such to worship him, as worship him in spirit and in truth. The carnal mind of man is enmity against God, therefore, is not capable of such spiritual worship. Hence the necessity of being born again. But numbers rest in mere forms, as tasks imposed upon them. Joshua puts them to their choice; but not as if it were indifferent whether they served God or not. Choose you whom ye will serve, now the matter is laid plainly before you. He resolves to do this, whatever others did. Those that are bound for heaven, must be willing to swim against the stream. They must not do as the most do, but as the best do. And no one can behave himself as he ought in any station, who does not deeply consider his religious duties in family relations. The Israelites agree with Joshua, being influenced by the example of a man who had been so great a blessing to them; We also will serve the Lord. See how much good great men do, by their influence, if zealous in religion. Joshua brings them to express full purpose of heart to cleave to the Lord. They must come off from all confidence in their own sufficiency, else their purposes would be in vain. The service of God being made their deliberate choice, Joshua binds them to it by a solemn covenant. He set up a monument of it. In this affecting manner Joshua took his last leave of them; if they perished, their blood would be upon their own heads. Though the house of God, the Lord's table, and even the walls and trees before which we have uttered our solemn purposes of serving him, would bear witness against us if we deny him, yet we may trust in him, that he will put his fear into our hearts, that we shall not depart from him. God alone can give grace, yet he blesses our endeavours to engage men to his service.