Albert Barnes on 1 Corinthians 7:35

For your own profit. That you may avail yourselves of all your advantages and privileges, and pursue such a course as shall tend most to advance your personal piety and salvation.

Not that I may cast a snare upon you. The word rendered snare (βροχον) means a cord, a rope, a bond; and the sense is, that Paul would not bind them by any rule which God had not made; or that he would not restrain them from that which is lawful, and which the welfare of society usually requires. Paul means, that his object in his advice was their welfare; it was not by any means to bind, fetter, or restrain them from any course which would be for their real happiness, but to promote their real and permanent advantage, The idea which is here presented by the word snare, is usually conveyed by the use of the word yoke, Mt 11:29, Acts 15:10, Gal 5:1, and sometimes by the word burden, Mt 23:4, Acts 15:28.

But for that which is comely. (ευσχημον.) Decorous, fit, proper, noble. For that which is best fitted to your present condition, and which, on the whole, will be best, and most for your own advantage. There would be a fitness and propriety in their pursuing the course which he recommended.

That ye may attend upon the Lord. That you may engage in religious duties and serve God.

Without distraction. Without being drawn away, (απερισπαστως;) without care, interruption, and anxiety. That you may be free to engage with undivided interest in the service of the Lord.

(+) "profit" "Advantage" (*) "comely" "becoming"