Jude

After all of his warnings regarding the attacks upon the faith Jude share some instruction on how the faithful should live. They are in contrast to the three traits of those who are rebelling against God; divisive, worldly, devoid of the Spirit (v 19). In verses 20 through 23 Jude spells them out. Praying in the Holy Spirit to build up the body. Loving like God does to maintain the fellowship (repair relationships?) that the Gospel has established. Live in anticipation of the mercy that Jesus' return will make real. The blessing being delivered in this Trinitarian proclamation are followed with calls for the display of mercy toward those who are unsure or struggling in their faith. That can be difficult during times of oppression. I'm not sure how the call to save and display mercy in verse 23 differs from the previous challenge.
Stuart