“But she is happier if she so abide, after my judgment: and I think also that I have the Spirit of God.”
King James Version (KJV)
7:40 I also - As well as any of you. Have the Spirit of God - Teaching me all things This does not imply any doubt; but the strongest certainty of it, together with a reproof of them for calling it in question. Whoever, therefore, would conclude from hence, that St. Paul was not certain he had the Spirit of Christ, neither understands the true import of the words, nor considers how expressly he lays claim to the Spirit, both in this epistle, #1Co 2:16|, 14:37, and the other. #2Co 13:3|. Indeed, it may be doubted whether the word here and elsewhere translated think, does not always imply the fullest and strongest assurance. See #1Cor 10:12|.
1Co 7:40 But she is happier if she so abide, after my judgment. In his judgment, and in the conditions then prevailing, she will consult her happiness by remaining a widow. It is not only his judgment, but the Spirit seems to point the same lesson. 1Ti 5:14 might be supposed to conflict with this, but it does not, when we remember that Paul's advice here is due to prevailing circumstances. The question of marriage or remarriage is one of prudential considerations.