"For there are eunuchs, who were born so from their mother's womb: and there are eunuchs, who were made so by men: and there are eunuchs, who have made themselves eunuchs for the kingdom of heaven. He that can take, let him take it." Matthew 19:12
"Then Peter answering, said to him: Behold we have left all things, and have followed thee: what therefore shall we have? And Jesus said to them: Amen, I say to you, that you, who have followed me, in the regeneration, when the Son of man shall sit on the seat of his majesty, you also shall sit on twelve seats judging the twelve tribes of Israel. And every one that hath left house, or brethren, or sisters, or father, or mother, or wife, or children, or lands for my name's sake, shall receive an hundredfold, and shall possess life everlasting. And many that are first, shall be last: and the last shall be first." Matthew 19:27-30
"Then Peter said: Behold, we have left all things, and have followed thee. Who said to them: Amen, I say to you, there is no man that hath left house, or parents, or brethren, or wife, or children, for the kingdom of God's sake, Who shall not receive much more in this present time, and in the world to come life everlasting." Luke 18:28-30
"But I would have you to be without solicitude. He that is without a wife, is solicitous for the things that belong to the Lord, how he may please God. But he that is with a wife, is solicitous for the things of the world, how he may please his wife: and he is divided. And the unmarried woman and the virgin thinketh on the things of the Lord, that she may be holy both in body and in spirit. But she that is married thinketh on the things of the world, how she may please her husband. And this I speak for your profit: not to cast a snare upon you; but for that which is decent, and which may give you power to attend upon the Lord, without impediment." 1 Corinthians 7:32-35
If you consider St. Paul's writings to be only opinion you no doubt consider the rest of Scripture to be only the opinion of the individual author's as well and not the inspired word of God, don't you? And if that is indeed the case then why are you even asking these questions?
I consider the remarks that Paul HIMSELF said were his opinion to be just that, his opinion. The places where he says that this is GOD’S word, I accept as just that as well. And your scripture quotation appears not to be MANDATING celibacy but merely allowing it as an option.