It is likely that a lamb or lambs were slain to cover Adam and Eve in Genesis 3.
It was a ram, caught in a thicket, by his horns that was sacrificed in the stead of Isaac in Genesis 22:13.
It was a lamb that was killed on the first Passover and the LORD delivered Israel out of Egyptian bondage (Exodus 12:3-28).
The blood of the lamb down through the ages in Scripture are pictures, shadows, types of the Lamb of God, who is Jesus Christ.
The One John sees and identifies is the redeeming, delivering, saving, and empowering Son of God.
In verses 29 and 36 the Baptist declares, “Behold the Lamb of God.” In verse 29 he says, “Behold the Lamb of God, which takes away the sin of the world.”
Jesus Christ, the Lamb of lambs. Jesus it the anti-type because He fulfills all the Old Testament pictures and types. Which is greater the picture and type and the law; or the One who is the very and only One who would take away the sins of the world?
It is of the utmost importance to know, that when one receives/believes on Jesus, that one also receives the Father; and when one believes the Father they also believe the Son (Luke 9:48). If one is rejected, both are rejected.
The greatest sin is rejecting the truth of who Jesus is – the Messiah, Anointed One; the Son of God – God the Son. To deny that is to deny Jesus’s own word, and all of Scripture, thus rejecting Him and the Father. That is not a fleshy, man made doctrine. That is the teaching of God’s word.
Jesus identified His Father as Jehovah or YaHWeH; the Father of fathers.
The Father of Jesus Christ sent His Son to be the Lamb, the Redeemer of all who come to Him.