'Advisable' in the Bible

Now Jonathan and Ahimaaz were staying in En Rogel. A female servant would go and inform them, and they would then go and inform King David. It was not advisable for them to be seen going into the city.

The disciples said to Jesus, “If the relationship of a man with his wife is like this, it is better not to marry.”

Now about what you asked: "Is it advisable for a man not to marry?"

And if it seems advisable that I should go also, they will go with me.