L
The promise of obedience they appear to fulfill when this involves no sacrifice; but when self-denial and self-sacrifice are required, when they see the cross to be lifted, they draw back. Thus the conviction of duty wears away, and known transgression of God’s commandments becomes habit. The ear may hear God’s word, but the spiritual perceptive powers have departed. The heart is hardened, the conscience seared. {COL 279.2}
Do not think that because you do not manifest decided [BEGIN P.280] hostility to Christ you are doing Him service. We thus deceive our own souls. By withholding that which God has given us to use in His service, be it time or means or any other of His entrusted gifts, we work against Him. {COL 279.3}
Satan uses the listless, sleepy indolence of professed Christians to strengthen his forces and win souls to his side. Many, who think that though they are doing no actual work for Christ, they are yet on His side, are enabling the enemy to pre-occupy ground and gain advantages. By their failure to be diligent workers for the Master, by leaving duties undone and words unspoken, they have allowed Satan to gain control of souls who might have been won for Christ. {COL 280.1}
We can never be saved in indolence and inactivity. There is no such thing as a truly converted person living a helpless, useless life. It is not possible for us to drift into heaven. No sluggard can enter there. If we do not strive to gain an entrance into the kingdom, if we do not seek earnestly to learn what constitutes its laws, we are not fitted for a part in it. Those who refuse to co-operate with God on earth would not co-operate with Him in heaven. It would not be safe to take them to heaven.
White, Ellen Gould: Christ's Object Lessons. Review and Herald Publishing Association, 1900; 2002, S. 279