Exodus 27 provides detailed instructions from God to Moses for constructing key elements of the Tabernacle’s courtyard, emphasizing the sacred space where the Israelites would worship. It reveals God’s holiness and foreshadows Christ’s redemptive work. Here’s a summary:

1. The Altar of Burnt Offering (Verses 1-8):
   The chapter begins with the altar, made of acacia wood overlaid with bronze, measuring 5 cubits square and 3 cubits high (about 7.5×7.5×4.5 feet). It had horns on its four corners, a bronze grating, and poles for portability. This was where animal sacrifices were offered for atonement, prefiguring Jesus as the ultimate sacrifice (Hebrews 10:10), with the bronze symbolizing judgment and the wood His humanity.
2. The Courtyard (Verses 9-19):
   The Tabernacle was enclosed by a courtyard, 100 cubits long, 50 cubits wide, and 5 cubits high (about 150×75×7.5 feet), formed by linen curtains hung on acacia pillars with bronze bases and silver hooks. The east side featured a 20-cubit gate of blue, purple, and scarlet yarn, the only entrance. This space separated the holy from the common, housing the altar and laver, and points to Christ as the “gate” (John 10:9) through whom believers access God.
3. Oil for the Lamp (Verses 20-21):
   The chapter ends with a command for the Israelites to bring pure olive oil to keep the Tabernacle’s lamp burning continually, tended by Aaron and his sons from evening to morning. This perpetual light symbolizes God’s constant presence, fulfilled in Christ, the “light of the world” (John 8:12).

Christian Significance:
Exodus 27 outlines a physical structure for worship under the Old Covenant, but Christians see it as a shadow of New Covenant realities. The altar represents Christ’s atoning death, the courtyard His universal invitation, and the lamp His enduring presence. Together, these elements show God’s desire to dwell with His people, fully realized through Jesus, who replaces the temporary system with eternal access to God (Hebrews 9:11-12).