New Defender's Study Bible Notes
27:1 altar of shittim wood. The altar would eventually receive countless sacrificial animals, offered as burnt offerings (Leviticus 4:7), while bound to the horns of the altar (Psalm 118:27). Although most altars in ancient times did not have horns, at least one horned altar has been excavated near Beersheba. It is significant that sacrifice for sin was essential before coming into God’s presence.
27:18 hundred cubits. The outside dimensions of the tabernacle were 150 feet by 75 feet, assuming one cubit was eighteen inches.