2 Corinthians 6:11-12

Verse 11. O ye Corinthians, our mouth is open unto you. We speak freely and fully. This is an affectionate address to them, and has reference to what he had just said. It means, that when the heart was full on the subject, words would flow freely, and that he had given vent to the fervid language which he had just used because his heart was full. He loved them; he felt deeply; and he spoke to them with the utmost freedom of what he had thought, and purposed, and done.

Our heart is enlarged. We have deep feelings, which naturally vent themselves in fervent and glowing language. The main idea here is, that he had a strong affection for them; a heart which embraced and loved them all, and which expressed itself in the language of deep emotion, he had loved them so that he was willing to be reproached, and to be persecuted, and to be poor, and to have his name cast out as evil. "I cannot be silent. I conceal or dissemble nothing. I am full of ardent attachment, and that naturally vents itself in the strong language which I have used." True attachment will find means of expressing itself. A heart full of love will give vent to its feelings. There will be no dissembling and hypocrisy there. And if a minister loves the souls of his people, he will pour out the affections of his heart in strong and glowing language.
Verse 12. Ye are not straitened in us. That is, you do not possess a narrow or contracted place in our affections. We love you fully, ardently, and are ready to do all that can be done for your welfare. There is no want of room in our affections towards you. It is not narrow, confined, pent up. It is ample and free.

But ye are straitened in your own bowels. That is, in the affections of your hearts. The word here used (σπλαγχνοις) commonly means, in the Bible, the tender affections. The Greek word properly denotes the upper viscera; the heart, the lungs, the liver. It is applied by Greek writers to denote those parts of victims which were eaten during or after the sacrifice.--Robinson, (Lex.) Hence it is applied to the heart, as the seat of the emotions and passions; and especially the gentler emotions, the tender affections--compassion, pity, love, etc. Our word "bowels" is applied usually to the lower viscera, and by no means expresses the idea of the word which is used in Greek. The idea here is, that they were straitened or were confined in their affections for him. It is the language of reproof, meaning that he had not received from them the demonstrations of attachment which he had a right to expect, and which was a fair and proportionate return for the love bestowed on them. Probably he refers to the fact that they had formed parties; had admitted false teachers; and had not received his instructions as implicitly and as kindly as they ought to have done.
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