Sinai
Name meaning: "a bush; enmity"
Sinai — also called Horeb, "the mountain of God" — is the sacred mountain in the wilderness peninsula that bears its name, where the LORD revealed Himself to Moses, gave the Law, and bound Israel to Himself in covenant. No site outside the Promised Land is more theologically significant: at Sinai a company of freed slaves was constituted the people of God, and the pattern of covenant, law, priesthood, and worship that shaped the rest of the Old Testament was established.
It was at Horeb that the LORD first appeared to Moses in the flame of the burning bush and revealed His name, I AM WHO I AM, commissioning him to bring Israel out of Egypt and promising, "you shall serve God on this mountain" (Exodus 3:12). That promise was fulfilled when Israel arrived at the wilderness of Sinai in the third month after the exodus (Exodus 19:1). There the LORD descended in fire, and the mountain was wrapped in thunder, lightning, thick cloud, smoke, and the blast of a trumpet, so that the people trembled (Exodus 19:18). The LORD declared His purpose for them: "you shall be to me a kingdom of priests and a holy nation" (Exodus 19:6).
From the mountain God spoke the Ten Commandments (Exodus 20:1–17) and gave through Moses the body of law and the pattern of the tabernacle. Israel ratified the covenant in blood (Exodus 24:7–8), then almost at once broke it with the golden calf, occasioning Moses' intercession and the revelation of the LORD as "merciful and gracious, slow to anger" (Exodus 34:6). Israel remained encamped at Sinai about a year, building the tabernacle and ordering the Levitical system, before setting out for Canaan (Numbers 10:11–12). Centuries later the prophet Elijah, fleeing Jezebel, journeyed forty days to Horeb, where he met God not in wind, earthquake, or fire but in a low whisper (1 Kings 19:8–12). The precise location is debated, the traditional site being Jebel Musa in the southern peninsula, with some proposing locations in northwest Arabia.
Theologically, Sinai stands for the old covenant of law in its glory and its severity. Paul reads it allegorically: Hagar and "Mount Sinai in Arabia" correspond to the present Jerusalem in slavery under the law, over against "the Jerusalem above," who is free (Galatians 4:24–26). Hebrews sets the terror of the untouchable, burning mountain against the joy of the new covenant: "you have not come to what may be touched, a blazing fire... But you have come to Mount Zion... and to Jesus, the mediator of a new covenant" (Hebrews 12:18–24). Sinai thus marks both the giving of the law that reveals sin and the foreshadowing of the better covenant fulfilled in Christ.