Joshua 1:9 - Be strong and of good courage
There is no better companion than the Lord. He is with us and because of this, we should fear no challenge. That is not to say that we will win every battle... it is not ours to know which battles we are to win and which we are to lose, but we will always win as long as we keep Yeshua in our hearts even if we don't know what victory really looks like in this life.