Mark 3:28-30 (AMP)
“I assure you and most solemnly say to you, all sins will be forgiven the sons of men, and all the abusive and blasphemous things they say; 29 but whoever blasphemes against the Holy Spirit and His power [by attributing the miracles done by Me to Satan] never has forgiveness, but is guilty of an everlasting sin [a sin which is unforgivable in this present age as well as in the age to come]”— 30 [Jesus said this] because the scribes and Pharisees were [attributing His miracles to Satan by] saying, “He has an unclean spirit.”
1 Peter 1:6-7 Amplified Bible (AMP)
In this you rejoice greatly, even though now for a little while, if necessary, you have been distressed by various trials, 7 so that the genuineness of your faith, which is much more precious than gold which is perishable, even though tested and purified by fire, may be found to result in [your] praise and glory and honor at the revelation of Jesus Christ..
Colossians 4:5-6 (AMP)
Behave yourselves wisely [living prudently and with discretion] in your relations with those of the outside world (the non-Christians), making the very most of the time and seizing (buying up) the opportunity. 6 Let your speech at all times be gracious (pleasant and winsome), seasoned [as it were] with salt, [so that you may never be at a loss] to know how you ought to answer anyone [who puts a question to you].
Philippians 1:6 (AMP)
I am convinced and confident of this very thing, that He who has begun a good work in you will [continue to] perfect and complete it until the day of Christ Jesus [the time of His return].
But I tell you the truth, it is to your advantage that I go away; for if I do not go away, the Helper (Comforter, Advocate, Intercessor—Counselor, Strengthener, Standby) will not come to you; but if I go, I will send Him (the Holy Spirit) to you [to be in close fellowship with you].