Okay. Christians believe that a man (and god), Jesus Christ, was crucified, and it led to the payment of their sins. My question is: what exactly did Jesus sacrifice? What did he give up so that sins of people could be forgiven, so that his father (isn't that himself also?) would not unleash his wrath?
Not being aware of what you know of Christianity, I’ll try to use scripture to aid you to ascertain certain facts of our faith.
Who is Jesus?
Below John the Baptist is announcing Jesus whom Esaias proclaimed as God.
Isa 40:3 The voice of him that crieth in the wilderness, Prepare ye the way of the LORD (Jehovah= Jewish national name of God), make straight in the desert a highway for our God.
Joh 1:23 He said, I (John the Baptist)
am the voice of one crying in the wilderness, Make straight the way of the Lord, as said the prophet Esaias.
Why did Jesus become man? He became God with us. Mat 1:23 . . they shall call His name Emmanuel, which being interpreted is, God with us.
Php 2:5 Let this mind be in you, which was also in Christ Jesus:
Php 2:6 Who, being in the form of God, thought it not robbery to be equal with God:
Php 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:
Php 2:8 And being found in fashion as a man, he humbled himself, and became obedient unto death, even the death of the cross.
God had a way for us to be saved from sin.
Rom 3:23 For all have sinned, and come short of the glory of God;
Rom 3:24 Being justified freely by his grace through the redemption that is in Christ Jesus:
Rom 6:23 For the wages of sin is death; but the gift of God is eternal life through Jesus Christ our Lord.
1 Jn 4:10 Herein is love, not that we loved God, but that he loved us, and sent his Son
to be the propitiation (appeasing) for our sins.
3:18 For Christ also hath once suffered for sins, the just for the unjust, that he might bring us to God, being put to death in the flesh, but quickened by the Spirit:
I’ll leave off and see what questions this might bring.