THE KINGDOM OF GOD HAS NO PLACE FOR COWARDS
Are you afraid to confess your allegiance to Christ before men? You better get over it; because there is no place for cowards in the kingdom of God.
Revelation 21:8 But the fearful, and unbelieving, and the abominable, and murderers, and whoremongers, and sorcerers, and idolaters, and all liars, shall have their part in the lake which burneth with fire and brimstone: which is the second death.
But the fearful - Having stated, in general terms, who they were who would be admitted into that blessed world, he now states explicitly who would not. The “fearful” denote those who had not firmness boldly to maintain their professed principles, or who were afraid to avow themselves as the friends of God in a wicked world. They stand in contrast with those who “overcome,” Rev_21:7. Barnes
The Seven Deadly Deceptions Of Counterfeit Christianity