Living by the power of God: The treasure in our weak bodies.

For though He was crucified in weakness, yet He lives by the power of God. For we also are weak in Him, but we shall live with Him by the power of God toward you. (2 Cor 13:4)

The sttement "Our Lord through weakness."  refers it to the human nature which he had assumed Philippians 2:7-8; 1 Peter 3:18, and to the appearance of weakness which he manifested. He did not choose to exert his power. He appeared to his enemies to be weak and feeble. This idea would be an exact illustration of the point before the apostle. 

He is illustrating his own conduct, and especially in the fact that he had not exerted his miraculous powers among them in the punishment of offenders; and he does it by the example of Christ, who though abundantly able to have exerted his power and to have rescued himself from his enemies, yet was willing to appear weak, and to be crucified. It is very clear:

1. That the Lord Jesus seemed to his enemies to be weak and incapable of resistance.
2. that he did not put forth his power to protect his life. He in fact offered no resistance, as if he had no power.
3. he had a human nature that was especially sensitive, and sensible to suffering; and that was borne down and crushed under the weight of mighty woes;  From all these causes he seemed to be weak and feeble;

We now have this light shining in our hearts, but we ourselves are like fragile clay jars containing this great treasure.[a] This makes it clear that our great power is from God, not from ourselves. (2 Cor 4:7 -12).

Yet he liveth - He is not now dead. Though he was crucified, yet he now lives again, and is now capable of exerting his great power He furnishes proof of his being alive, in the success which attends the gospel, and in the miracles which are performed in his name and by his power. There is a living Redeemer in heaven; a Redeemer who is able to exert all the power which he ever exerted when on earth; a Redeemer, therefore, who is able to save the soul; to raise the dead; to punish all his foes.

By the power of God - In raising him from the dead and placing him at his own right hand; see Ephesians 1:19-21. Through the power of God he was brought from the tomb, and has a place assigned him at the head of the universe.

I pray that you will continually experience the immeasurable greatness of God’s power made available to you through faith. Then your lives will be an advertisement of this immense power as it works through you! (Eph 1:19-21)

For we also are weak in him-, "with him." Paul notes that as his apostles and followers, also, we are weak in virtue of our connection with him. We are subject to infirmities and trials; we seem to have no power; we are exposed to contempt; and we appear to our enemies to be destitute of strength. Our enemies regard us as feeble; and they despise us.

But we shall live with him ... - That is, we shall show to you that we are alive. By the aid of the power of God we shall show that we are not as weak as our foes pretend; that we are invested with power; and that we are able to inflict the punishment which we threaten. This is one of the numerous instances in which Paul illustrated the case before him by a reference to the example and character of Christ. 

The idea is, that Christ did not exert his power, and appeared to be weak, and was put to death. So Paul says that he had not exerted his power, and seemed to be weak. But, says he, Christ lives, and is clothed with strength; and so we, though we appear to be weak, shall exert among you, or toward you, the power with which he has invested us, in inflicting punishment on our foes.

I was with you in weakness, in fear, and in much trembling.  And my speech and my preaching were not with persuasive words of [a]human wisdom, but in demonstration of the Spirit and of power (1 cor 2:3 -4)