17 But you, dear friends, remember the words spoken beforehand by the apostles of our Lord Jesus Christ. 18 They said to you, “In the end time scoffers will come living according to their own ungodly desires.” 19 These people create divisions. Since they don’t have the Spirit, they are worldly. 20 But you, dear friends: build each other up on the foundation of your most holy faith, pray in the Holy Spirit, 21 keep each other in the love of God, wait for the mercy of our Lord Jesus Christ, who will give you eternal life. 22 Have mercy on those who doubt. 23 Save some by snatching them from the fire. Fearing God, have mercy on some, hating even the clothing contaminated by their sinful urges. 24 To the one who is able to protect you from falling, and to present you blameless and rejoicing before his glorious presence, 25 to the only God our savior, through Jesus Christ our Lord, belong glory, majesty, power, and authority, before all time, now and forever. Amen. (Jude 17-25, CEB)
We have the sure foundation and we need to make sure we are building on that foundation. Then when scoffers and those who are not really in the Spirit come to shake us, we will stand firm.
Now that doesn’t mean that things have to always stay the same, it means the foundation doesn’t change. It means we are firmly planted on Christ and that God is doing the building. We are secure in the basis of our lives on God, and that makes everything true and right.
So keep the firm foundation and allow God to build you up.