Jeremiah 12:5-6

5“If you have run with infantrymen and they have tired you out, How can you compete with horses? If you fall down in a land of peace, How will you do in the 1thicket by the Jordan?6For even your 2brothers and the household of your father, Even they have dealt treacherously with you, Even they have called aloud after you. Do not believe them, though they say 3nice things to you.”