2Cor. 4:10 always carrying about in the body the dying of Jesus, so that the life of Jesus also may be manifested in our body.

How do we carry "about the body of the dying Jesus" and why do we have to?

We died to and for the past and its sins.

2Cor. 4:11 For we who live are constantly being delivered over to death for Jesus' sake, so that the life of Jesus also may be manifested in our mortal flesh.
2Cor. 4:12 So death works in us, but life in you.

But, what about the "dying Jesus?"

Heb. 5:8 Although He was a Son, He learned obedience from the things which He suffered.

Matt. 16:24 ¶ Then Jesus said to His disciples, "If anyone wishes to come after Me, he must deny himself, and take up his cross and follow Me.

1Pet. 2:21 For you have been called for this purpose, since Christ also suffered for you, leaving you an example for you to follow in His steps,

1Pet. 4:1 ¶ Therefore, since Christ has suffered in the flesh, arm yourselves also with the same purpose, because he who has suffered in the flesh has ceased from sin,

1Pet. 3:9 not returning evil for evil or insult for insult, but giving a blessing instead; for you were called for the very purpose that you might inherit a blessing.

Heb. 12:5 and you have forgotten the exhortation which is addressed to you as sons,
"MY SON, DO NOT REGARD LIGHTLY THE DISCIPLINE OF THE LORD,
NOR FAINT WHEN YOU ARE REPROVED BY HIM;
Heb. 12:6 FOR THOSE WHOM THE LORD LOVES HE DISCIPLINES,
AND HE SCOURGES EVERY SON WHOM HE RECEIVES."
Heb. 12:7 It is for discipline that you endure; God deals with you as with sons; for what son is there whom his father does not discipline?
Heb. 12:8 But if you are without discipline, of which all have become partakers, then you are illegitimate children and not sons.
Heb. 12:9 Furthermore, we had earthly fathers to discipline us, and we respected them; shall we not much rather be subject to the Father of spirits, and live?
Heb. 12:10 For they disciplined us for a short time as seemed best to them, but He disciplines us for our good, so that we may share His holiness.
Heb. 12:11 All discipline for the moment seems not to be joyful, but sorrowful; yet to those who have been trained by it, afterwards it yields the peaceful fruit of righteousness.

Rev. 3:19 'Those whom I love, I reprove and discipline; therefore be zealous and repent.

Heb. 2:18 For since He Himself was tempted in that which He has suffered, He is able to come to the aid of those who are tempted.

James 1:12 ¶ Blessed is a man who perseveres under trial; for once he has been approved, he will receive the crown of life which the Lord has promised to those who love Him.