Luke 13:24-25 (KJV) Strive to enter in at the strait gate: for many, I say unto you, will seek to enter in, and shall not be able.
When once the master of the house is risen up, and hath shut to the door, and ye begin to stand without, and to knock at the door, saying, Lord, Lord, open unto us; and he shall answer and say unto you, I know you not whence ye are:

This quote is by Ellen White
Christ object lesson
Page 280
No drifting into heaven

There is no thing such a truly converted person living a helpless, useless life. It is not possible for us to drift into heaven. No sluggers shall enter there. If we do not strike to ga in entrance into the kingdom, if we do not seek earnestly to learn what constitutes its law, we are not fitted for a part in it. Those whose refuse o cooperate with Him in heaven. It would not bee safe to take them to heaven.