'Surety' in the Bible

Be the guarantee for Your servant for good [as Judah was the guarantee for Benjamin];Do not let the arrogant oppress me.

“Now learn this lesson from the fig tree: As soon as its young shoots become tender and it puts out its leaves, you know that summer is near;

so you, too, when you see all these things [taking place], know for certain that He is near, right at the door.