THE ADVENT TRUTH
No lies here, just Bible. Abraham said, “My son, God will provide himself a lamb for a burnt offering” (Genesis 22:8, KJV). That’s not my assumption; that’s Abraham’s own words on Moriah. God did, in that moment, provide a ram caught in a thicket (v.13) as the immediate substitute, and the “lamb” language points forward to Christ, “the Lamb of God” (John 1:29). Hebrews confirms Abraham was acting by faith in God’s power to raise the dead (Hebrews 11:17–19).

Also, Scripture is crystal that God’s moral will and sacrificial knowledge existed before Sinai:
• Sacrifices before Moses: Abel offered of the flock (Genesis 4:4). Noah built an altar and sacrificed clean animals (Genesis 8:20–21). Job offered burnt offerings for his household (Job 1:5)—all pre-Sinai.
• God’s law before Sinai: God says of Abraham, “he obeyed my voice, and kept my charge, my commandments, my statutes, and my laws” (Genesis 26:5). You can’t “keep” what doesn’t exist.
• The Sabbath before Sinai: In the manna test before the Ten Commandments were spoken at Sinai, God says, “Tomorrow is the rest of the holy sabbath unto the LORD” (Exodus 16:23, 27–30). The people are rebuked for breaking it prior to Exodus 20.
• The Gospel before Sinai: The promise of a sin-bearing Deliverer starts in Eden (Genesis 3:15), and God clothing Adam and Eve with skins (Genesis 3:21) foreshadows substitution. Abraham’s “lamb” language fits that redemptive line, fulfilled in Christ (1 Peter 1:18–20).

So how did Abraham “know”? Because God had already revealed the pattern of substitutionary sacrifice and had promised a coming Seed. Abraham trusted that promise on the mountain, and God provided—immediately with a ram, ultimately with the Lamb (John 1:29).

If you think I misread a verse, cite it and let’s open the Bible together. But the texts above are plain: revelation, sacrifice, Sabbath, and moral law all predate Sinai. That’s Bible, not bluff.