Mark 8:11-12; Mark 13:4; Mark 13:22; Mark 16:17; Mark 16:20

11 And the Pharisees came forth , and began to question with him, seeking of him a sign from heaven, tempting him. 12 And he sighed deeply in his spirit, and saith , Why doth this generation seek after a sign? verily I say unto you, There shall no sign be given unto this generation.
4 Tell us, when shall these things be ? and what shall be the sign when all these things shall be fulfilled ?
22 For false Christs and false prophets shall rise , and shall shew signs and wonders, to seduce , if it were possible, even the elect.
17 And these signs shall follow them that believe ; In my name shall they cast out devils; they shall speak with new tongues;
20 And they went forth , and preached every where, the Lord working with them, and confirming the word with signs following . Amen.