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 9:7-14,7But into the second went the high priest alone once every year, not without blood, which he offered for himself, and for the errors of the people: 8The Holy Ghost this signifying, that the way into the holiest of all was not yet made manifest, while as the first tabernacle was yet standing: 9Which was a figure for the time then present, in which were offered both gifts and sacrifices, that could not make him that did the service perfect, as pertaining to the conscience; 10Which stood only in meats and drinks, and divers washings, and carnal ordinances, imposed on them until the time of reformation. 11But Christ being come an high priest of good things to come, by a greater and more perfect tabernacle, not made with hands, that is to say, not of this building; 12Neither by the blood of goats and calves, but by his own blood he entered in once into the holy place, having obtained eternal redemption for us. 13For if the blood of bulls and of goats, and the ashes of an heifer sprinkling the unclean, sanctifieth to the purifying of the flesh: 14How much more shall the blood of Christ, who through the eternal Spirit offered himself without spot to God, purge your conscience from dead works to serve the living God? (Hebrews 9:7‑14) Matthew 27:51,51And, behold, the veil of the temple was rent in twain from the top to the bottom; and the earth did quake, and the rocks rent; (Matthew 27:51) and finally read Hebrews 10:19-2219Having therefore, brethren, boldness to enter into the holiest by the blood of Jesus, 20By a new and living way, which he hath consecrated for us, through the veil, that is to say, his flesh; 21And having an high priest over the house of God; 22Let us draw near with a true heart in full assurance of faith, having our hearts sprinkled from an evil conscience, and our bodies washed with pure water. (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).