Here is, I. The pious care of the separated tribes to keep their hold of Canaan's religion, even when they were leaving Canaan's land, that they might not be as the sons of the stranger, utterly separated from God's people, Isa. lvi. 3. In order to this, they built a great altar on the borders of Jordan, to be a witness for them that they were Israelites, and as such partakers of the altar of the Lord, 1 Cor. x. 18. When they came to Jordan (v. 10) they did not consult how to preserve the remembrance of their own exploits in the wars of Canaan, and the services they had done their brethren, by erecting a monument to the immortal honour of the two tribes and a half; but their relation to the church of God, together with their interest in the communion of saints, is that which they are solicitous to preserve and perpetuate the proofs and evidences of; and therefore without delay, when the thing was first proposed by some among them, who, though glad to think that they were going towards home, were sorry to think that they were going from the altar of God, immediately they erected this altar, which served as a bridge to keep up their fellowship with the other tribes in the things of God. Some think they built this altar on the Canaan-side of Jordan, in the lot of Benjamin, that, looking over the river, they might see the figure of the altar at Shiloh, when they could not conveniently go to it; but it is more likely that they built it on their own side of the water, for what had they to do to build on another man's land without his consent? And it is said to be over-against the land of Canaan; nor would there have been any cause of suspecting it designed for sacrifice if they had not built it among themselves. This altar was very innocently and honestly designed, but it would have been well if, since it had in it an appearance of evil, and might be an occasion of offence to their brethren, they had consulted the oracle of God about it before they did it, or at least acquainted their brethren with their purpose, and given them the same explication of their altar before, to prevent their jealousy, which they did afterwards, to remove it. Their zeal was commendable, but it ought to have been guided with discretion. There was no need to hasten the building of an altar for the purpose for which they intended this, but they might have taken time to consider and take advice; yet, when their sincerity was made to appear, we do not find that they were blamed for their rashness. God does, and men should, overlook the weakness of an honest zeal.