'Unfamiliar' in the Bible

I will lead the blind along an unfamiliar way; I will guide them down paths they have never traveled. I will turn the darkness in front of them into light, and level out the rough ground. This is what I will do for them. I will not abandon them.

They are unfamiliar with peace; their deeds are unjust. They use deceitful methods, and whoever deals with them is unfamiliar with peace.