No Christian is called to live in isolation from other believers. God is gathering a people for Himself; He is not simply gathering individuals. The local church provides essential means of grace that cause believers to endure until the end:
"Therefore, brothers and sisters, since we have confidence to enter the holy place by the blood of Jesus, by a new and living way which He inaugurated for us through the veil, that is, through His flesh, and since we have a great priest over the house of God, let’s approach God with a sincere heart in full assurance of faith, having our hearts sprinkled clean from an evil conscience and our bodies washed with pure water. Let’s hold firmly to the confession of our hope without wavering, for He who promised is faithful; and let’s consider how to encourage one another in love and good deeds, not abandoning our own meeting together, as is the habit of some people, but encouraging one another; and all the more as you see the day drawing near." (Hebrews 10:19-25).