King James Version
Who serve unto the example and shadow of heavenly things, as Moses was admonished of God when he was about to make the tabernacle: for, See, saith he, that thou make all things according to the pattern shewed to thee in the mount.English Standard Version
They serve a copy and shadow of the heavenly things. For when Moses was about to erect the tent, he was instructed by God, saying, "See that you make everything according to the pattern that was shown you on the mountain."New International Version
They serve at a sanctuary that is a copy and shadow of what is in heaven. This is why Moses was warned when he was about to build the tabernacle: "See to it that you make everything according to the pattern shown you on the mountain."