Verses with the word weak in the New Testament (27 verses):

Matthew 26:41
Watch and pray, that ye enter not into temptation: the spirit indeed is willing, but the flesh is weak.

Mark 14:38
Watch ye and pray, lest ye enter into temptation. The spirit truly is ready, but the flesh is weak.

Acts 20:35
I have shewed you all things, how that so labouring ye ought to support the weak, and to remember the words of the Lord Jesus, how he said, It is more blessed to give than to receive.

Romans 4:19
And being not weak in faith, he considered not his own body now dead, when he was about an hundred years old, neither yet the deadness of Sarah's womb:

Romans 8:3
For what the law could not do, in that it was weak through the flesh, God sending his own Son in the likeness of sinful flesh, and for sin, condemned sin in the flesh:

Romans 14:1
Him that is weak in the faith receive ye, but not to doubtful disputations.

Romans 14:2
For one believeth that he may eat all things: another, who is weak, eateth herbs.

Romans 14:21
It is good neither to eat flesh, nor to drink wine, nor any thing whereby thy brother stumbleth, or is offended, or is made weak.

Romans 15:1
We then that are strong ought to bear the infirmities of the weak, and not to please ourselves.

1 Corinthians 1:27
But God hath chosen the foolish things of the world to confound the wise; and God hath chosen the weak things of the world to confound the things which are mighty;

1 Corinthians 4:10
We are fools for Christ's sake, but ye are wise in Christ; we are weak, but ye are strong; ye are honourable, but we are despised.

1 Corinthians 8:7
Howbeit there is not in every man that knowledge: for some with conscience of the idol unto this hour eat it as a thing offered unto an idol; and their conscience being weak is defiled.

1 Corinthians 8:9
But take heed lest by any means this liberty of your's become a stumblingblock to them that are weak.

1 Corinthians 8:10
For if any man see thee which hast knowledge sit at meat in the idol's temple, shall not the conscience of him which is weak be emboldened to eat those things which are offered to idols;

1 Corinthians 8:11
And through thy knowledge shall the weak brother perish, for whom Christ died?

1 Corinthians 8:12
But when ye sin so against the brethren, and wound their weak conscience, ye sin against Christ.

1 Corinthians 9:22
To the weak became I as weak, that I might gain the weak: I am made all things to all men, that I might by all means save some.

1 Corinthians 11:30
For this cause many are weak and sickly among you, and many sleep.

2 Corinthians 10:10
For his letters, say they, are weighty and powerful; but his bodily presence is weak, and his speech contemptible.

2 Corinthians 11:21
I speak as concerning reproach, as though we had been weak. Howbeit whereinsoever any is bold, (I speak foolishly,) I am bold also.

2 Corinthians 11:29
Who is weak, and I am not weak? who is offended, and I burn not?

2 Corinthians 12:10
Therefore I take pleasure in infirmities, in reproaches, in necessities, in persecutions, in distresses for Christ's sake: for when I am weak, then am I strong.

2 Corinthians 13:3
Since ye seek a proof of Christ speaking in me, which to you-ward is not weak, but is mighty in you.

2 Corinthians 13:4
For though he was crucified through weakness, yet he liveth 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 Corinthians 13:9
For we are glad, when we are weak, and ye are strong: and this also we wish, even your perfection.

Galatians 4:9
But now, after that ye have known God, or rather are known of God, how turn ye again to the weak and beggarly elements, whereunto ye desire again to be in bondage?

1 Thessalonians 5:14
Now we exhort you, brethren, warn them that are unruly, comfort the feebleminded, support the weak, be patient toward all men.