This is not exegesis. In this context and in that of the whole Bible that is irresponsible eisegesis. The verse to which you refer assures no such thing.
But then to what do those verses refer???
1Co 7:27 Art thou bound unto a wife? seek not to be loosed. Art thou loosed from a wife? seek not a wife.
1Co 7:28 But and if thou marry, thou hast not sinned; and if a virgin marry, she hath not sinned. Nevertheless such shall have trouble in the flesh: but I spare you.
It's clear to me that 'But' in verse 28 is a continuation of 'Art thou loosed from a wife? seek not a wife'., in verse 27...And if not, why would Paul have to remind someone that it's not a sin to marry...Who wouldn't know that (except possibly a Catholic)??? And then Paul points out that if a virgin marries, she hasn't sinned either...
It's kinda like when you show a Catholic actual scripture that says a bishop must have a wife and family to be qualified to be a bishop...They pretend that scripture doesn't exist...You've cited some good Old Testament scripture but what about the scripture to the church...You can't just ignore it...
Act_20:27 For I have not shunned to declare unto you all the counsel of God.
The apostle Paul didn't ignore it...
Matthew 5:19,20 (KJV):
19 Whosoever therefore shall break one of these least commandments, and shall teach men so, he shall be called the least in the kingdom of heaven: but whosoever shall do and teach them, the same shall be called great in the kingdom of heaven.
20 For I say unto you, That except your righteousness shall exceed the righteousness of the scribes and Pharisees, ye shall in no case enter into the kingdom of heaven.
Good scripture there but none of it was written to me nor the church, doctrinally...
except your righteousness shall exceed the righteousness of the scribes and Pharisees.
Really??? That verse doesn't apply to Christians...
I don't have any righteousness...None at all...All my righteousness is in Jesus Christ...He picked up my check and paid the bill...Those people in those verses are under the law...They have to pay their own bill...
Their religious system is filled with priests, a veil, sacrifices, food restrictions and all kinds of things Jesus did away with when his church got off the ground...He then gave the Apostle Paul instructions on how to operate the church...And it was a whole new world to those Jesus is speaking to in Matt. 5...You won't find the church in Matt. 5...
By your honorable promise to her, whether or not you were saved at the time. As long as you both shall live, until death parts y'all.
seek not to be loosed.
By seeking man's court decree, which is not valid with God; nor by acting so badly that you force her to separate from you and seek a court decree of divorce, a;so not valid to God. Whatsoever God hath joined together, do not permit mankind to part asunder.
Art thou loosed from a wife?
By the only dissolution of the God-joined oneness of flesh, departming of the soul ans spirit of one of the partners by physical death.
seek not a wife.
Merely a word of counsel, not a command: conjugal relationships will have to be maintained, and attention to one's partner will diminish the totality of dedication of one's attention to serving God without interference.
But
Being separated by death, not by divorce, in becoming thus loosed there was no sin involved
Then, going forward, in case you have been loosed from a wife in a legitimate way acceptable to God/Christ,
and if
(Greek conditional case 3 - it may be) you choose to select the lesser preferred path of a widower or widow (not a "grass widow") to be married again:
thou marry, thou hast not sinned
Clearly, less favorable to your own interests and a less peaceful life of negotiating opposing prefeences, still it is not a sinful choice between alternate God-permitted options for his servants. But it does not involve the damnable sin of remarriage adultery.
I don't understand wht your problem is with this interpretation that is consistent with the context, with Jesus' teachings on it, and with the whole context of the Bible of which the marital relationship is a thread from beginning to end:
Rev 19:7-9 (KJV):
7 Let us be glad and rejoice, and give honour to him: for the marriage of the Lamb is come, and his wife hath made herself ready.
8 And to her was granted that she should be arrayed in fine linen, clean and white: for the fine linen is the righteousness of saints.
9 And he saith unto me, Write, Blessed are they which are called unto the marriage supper of the Lamb. And he saith unto me, These are the true sayings of God.
"Stayed upon Jehovah, hearts are fully blessed; finding as He promised perfect peace and rest" (Frances R. Havergill)