'Necessary' in the Bible

Therefore I considered [it] necessary to urge the brothers that they should go on ahead to you and make arrangements in advance for your generous gift that was promised previously, so this would be prepared as a generous gift and not as grudgingly granted.

If it is necessary to boast, I will boast [about] {the things related to my weakness}.

It is necessary to boast; [it is] not profitable, but I will proceed to visions and revelations of the Lord.