Isaiah 5:18 & 19
"Woe to those who draw sin along with cords of deceit, and wickedness as with cart ropes, to those who say, 'Let God hurry, let him hasten his work so we may see it. Let it approach let the plan of the Holy One of Israel come, so we may know it.'" NIV translation
The picture here is of someone drawing out strands of fibers to make a rope. The woe comes to those who mix good cords with bad to make an inferior rope. The rope looks good on the outside but it is not strong like it should be with multiple good cords. When the rope is used under stress, it will break. It is also a picture of the "Christian" who says and does the proper things when at a "church" but there has been no change in their heart and acceptance of Jesus Christ. When they meet the Judge on that day, Jesus will say that he never knew them and they will be cast away.