Haydock Catholic Bible Commentary
Forbearing no longer. That is, not being able to be at rest, for not seeing you, nor hearing concerning you. (Witham) --- Not bearing to be any longer uncertain and uninformed of your constancy, amidst the tribulations you had to endure, I sent Timothy to strengthen you, that you might not be moved in the difficulties to which we are destined, and which it is appointed for us to undergo. (Calmet)
That we are appointed thereunto. That is, meet with trials and troubles in this world, as our Saviour Christ foretold. (Witham)
We live. That is, we live in joy and comfort, if you stand firm in the faith of Christ, as you ought. (Witham) --- The news that you stand steadfast in the Lord, reanimates me under all my sufferings, and as it were raises me to life again from the shadow of death, under which I am placed. O that I could see you, to complete the work of instructing you in the faith, which I have begun.
That we may see you face. Though epistles in absence give great comfort, and help to confirm the faith once delivered, it is by preaching that the faith of Jesus Christ and true religion are both begun and accomplished. --- And may accomplish those things that are wanting to your faith? That is, give you fuller instructions. (Witham)
And may the Lord multiply you. That is, increase the number of Christians among you. (Witham)