'Necessary' in the Bible
Shadrach, Meshach, and Abednego answered King Nebuchadnezzar, "It's not necessary for us to respond in this matter.
Now it was necessary for him to go through Samaria.
But if you do what is wrong, you should be afraid, for it is not without reason that they bear the sword. Indeed, they are God's servants to administer punishment to anyone who does wrong. Therefore, it is necessary for you to be acquiescent to the authorities, not only for the sake of God's punishment, but also for the sake of your own conscience.
This is necessary because you know the times it's already time for you to wake up from sleep, because our salvation is nearer now than when we became believers.
Therefore, I thought it necessary to urge these brothers to visit you ahead of me, to make arrangements in advance for this gift you promised, and to have it ready as something given generously and not forced.
Thus it was necessary for these earthly copies of the things in heaven to be cleansed by these sacrifices, but the heavenly things themselves are made clean with better sacrifices than these.
Dear friends, although I was eager to write to you about the salvation we share, I found it necessary to write to you and urge you to continue your vigorous defense of the faith that was passed down to the saints once and for all.