Isaiah 8:16
Bind up the testimony, seal the law among my disciples.

Mark 14:14
And wheresoever he shall go in, say ye to the goodman of the house, The Master saith, Where is the guestchamber, where I shall eat the passover with my disciples?

Luke 22:11
And ye shall say unto the goodman of the house, The Master saith unto thee, Where is the guestchamber, where I shall eat the passover with my disciples?

John 8:31
Then said Jesus to those Jews which believed on him, If ye continue in my word, then are ye my disciples indeed.

John 13:35
By this shall all men know that ye are my disciples, if ye have love one to another. 

John 15:8
Herein is my Father glorified, that ye bear much fruit; so shall ye be my disciples.