Who told you this strange thing?
This is just not true. Read the book of John. Jesus gave His own life to pave the way for our salvation. That is what Christianity is all about. It is the whole ball of wax/yarn.
1 Peter 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:”
yes even in the old testament;
Isaiah 53:4-6
New King James Version
4 Surely He has borne our griefs
And carried our sorrows;
Yet we esteemed Him stricken,
Smitten by God, and afflicted.
5 But He was wounded for our transgressions,
He was bruised for our iniquities;
The chastisement for our peace was upon Him,
And by His stripes we are healed.
6 All we like sheep have gone astray;
We have turned, every one, to his own way;
And the Lord [h]has laid on Him the iniquity of us all.
7 He was oppressed and He was afflicted,
Yet He opened not His mouth;
He was led as a lamb to the slaughter,
And as a sheep before its shearers is silent,
So He opened not His mouth.
8 He was taken from prison and from judgment,
And who will declare His generation?
For He was cut off from the land of the living;
For the transgressions of My people He was stricken.
9 And they made His grave with the wicked—
But with the rich at His death,
Because He had done no violence,
Nor
was any deceit in His mouth.
10 Yet it pleased the Lord to bruise Him;
He has put
Him to grief.
When You make His soul an offering for sin,
He shall see
His seed, He shall prolong
His days,
And the pleasure of the Lord shall prosper in His hand.
11 He shall see the labor of His soul,
and be satisfied.
By His knowledge My righteous Servant shall justify many,
For He shall bear their iniquities.
12 Therefore I will divide Him a portion with the great,
And He shall divide the spoil with the strong,
Because He poured out His soul unto death,
And He was numbered with the transgressors,
And He bore the sin of many,
And made intercession for the transgressors.
Peace always,
JF