'Opinion' in the Bible

Accept anyone who is weak in faith, but not for the purpose of arguing over differences of opinion.

Now concerning virgins, although I do not have any command from the Lord, I will give you my opinion as one who by the Lord's mercy is trustworthy.

However, in my opinion she will be happier if she stays as she is. And in saying this, I think that I, too, have God's Spirit.

I am giving you my opinion on this matter because it will be helpful to you. Last year you were not only willing to do something, but had already started to do it.