 For if he were on earth, he should not be a priest, seeing that there are priests that offer gifts according to the law, 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 showed to thee in the mountain. So he's saying what Moses did was right because Moses was following God's instruction. Moses was doing what he was told to do.