As a people we do not understand as we should the great conflict going on between invisible agencies, the controversy between loyal and disloyal angels. Evil angels are constantly at work, planning their line of attack, controlling as commanders, kings, and rulers, the disloyal human forces.... I call upon the ministers of Christ to press home upon the understanding of all who come within the reach of their voice, the truth of the ministration of angels. Do not indulge in fanciful speculations. The written Word is our only safety. We must pray as did Daniel, that we may be guarded by heavenly intelligences. As ministering spirits angels are sent forth to minister to those who shall be heirs of salvation. Pray, my brethren, pray as you have never prayed before. We are not prepared for the Lord′s coming. We need to make thorough work for eternity (Letter 201, 1899).