Isaiah 30:21

21 If you wander off the road to the right or the left, you will hear his voice behind you saying, "Here is the road. Follow it."

Isaiah 30:21 In-Context

19 You people who live in Jerusalem will not weep any more. The Lord is compassionate, and when you cry to him for help, he will answer you.
20 The Lord will make you go through hard times, but he himself will be there to teach you, and you will not have to search for him any more.
21 If you wander off the road to the right or the left, you will hear his voice behind you saying, "Here is the road. Follow it."
22 You will take your idols plated with silver and your idols covered with gold, and will throw them away like filth, shouting, "Out of my sight!"
23 Whenever you plant your crops, the Lord will send rain to make them grow and will give you a rich harvest, and your livestock will have plenty of pasture.
Scripture taken from the Good News Translation - Second Edition, Copyright 1992 by American Bible Society. Used by Permission.