V.15-30 Forty-eight boards. All the same size, all of wood (picture of humanity) all covered with gold (divine righteousness). You and I, as human beings in the state in which we were born, could never stand before a holy God. But as each board was covered with gold, so each believer has been made the righteousness of God in Christ (1 Cor. 1:30). Many boards one tabernacle. Many members one body (1 Cor. 12:12-14).
V.31-33 The veil separated the two rooms in the tabernacle the “holy place,” “the holiest of all” or “the most holy” (v. 33), God’s Presence, where the ark was. Through the veil, Aaron, the high priest, only could go once a year on the day of atonement. Read Hebrews 9:7-14, Matthew 27:51, and finally read Hebrews 10:19-22 for what this now means to us. You can be sure you will be richly rewarded if you look up these Scriptures.
V.36-37 The door of the tabernacle was a door of grace for the priests. No cherubim (judgment).