New Revised Standard Version
And we thought, If this should be said to us or to our descendants in time to come, we could say, ‘Look at this copy of the altar of the LORD, which our ancestors made, not for burnt offerings, nor for sacrifice, but to be a witness between us and you.’

New American Bible
Our thought was that, if in the future they should speak thus to us or to our descendants, we could answer: ‘Look at the copy of the altar of the LORD which our ancestors made, not for burnt offerings or for sacrifices, but to witness between you and us.’

Douay-Rheims Bible
And if they will say so, they shall answer them: Behold the altar of the Lord, which our fathers made, not for holocausts, nor for sacrifice, but for a testimony between us and you.

And if they will say so, they shall answer them: Behold the altar of the Lord, which our fathers made, not for holocausts, nor for sacrifice, but for a testimony between us and you.

Behold

Exodus 25:40 Look, and make it according to the pattern that was shewn thee in the mount.

2 Kings 16:10 And king Achaz went to Damascus to meet Theglathphalasar, king of the Assyrians, and when he had seen the altar of Damascus, king Achaz sent to Urias, the priest, a pattern of it, and its likeness, according to all the work thereof.

Ezekiel 43:10,11 But thou, son of man, shew to the house of Israel the temple, and let them be ashamed of their iniquities, and let them measure the building: . . .

Hebrews 8:5 Who serve unto the example and shadow of heavenly things. As it was answered to Moses, when he was to finish the tabernacle: See (saith he) that thou make all things according to the pattern which was shewn thee on the mount.