Gen 22:13 And Abraham lifted up his eyes, and looked, and behold behind him a ram caught in a thicket by his horns: and Abraham went and took the ram, and offered him up for a burnt offering in the stead of his son.
Why a ram and not a lamb? Jesus was called the Lamb of God. When Jesus was crucified, he was not a youngster, but a full grown man. The Ram was a full grown lamb. Another interesting thought is that he was caught in the thicket, (the crowd) by his horns. Horns represent power. Jesus put aside his power, (horns) and willingly gave himself up to be the sin offering.
Phil 2:6 Who, being in the form of God, (full of power) thought it not robbery to be equal with God:
Phil 2:7 But made himself of no reputation, and took upon him the form of a servant, and was made in the likeness of men:
Phil 2:8 And being found in fashion as a man, he humbled himself, and became obedient unto death, even the death of the cross.
John 19:10 Then saith Pilate unto him, Speakest thou not unto me? knowest thou not that I have power to crucify thee, and have power to release thee?
John 19:11 Jesus answered, Thou couldest have no power at all against me, except it were given thee from above: therefore he that delivered me unto thee hath the greater sin.
Salvation, is God's power to translate us into the kingdom of God.
Luke 1:68 Blessed be the Lord God of Israel; for he hath visited and redeemed his people,
Luke 1:69 And hath raised up an horn of salvation for us in the house of his servant David;
John 1:12 But as many as received him, to them gave he power to become the sons of God, even to them that believe on his name:
John 1:13 Which were born, not of blood, nor of the will of the flesh, nor of the will of man, but of God.
Rom 1:16 For I am not ashamed of the gospel of Christ: for it is the power of God unto salvation to every one that believeth; to the Jew first, and also to the Greek.
Rom 1:17 For therein is the righteousness of God revealed from faith to faith: as it is written, The just shall live by faith.