Because of offenses, many will be afraid to love. Who can they trust? Love God, and those of your household of faith. Restore those who will be restored, withdraw from those who seek to divide or walk contrary to the doctrine we are taught.
Rom 16:17 Now I beseech you, brethren, mark them which cause divisions and offences contrary to the doctrine which ye have learned; and avoid them.
Rom 16:18 For they that are such serve not our Lord Jesus Christ, but their own belly; and by good words and fair speeches deceive the hearts of the simple.
Mat 24:13 But he that shall endure unto the end, the same shall be saved.
If we come to Jesus of our own free will, we can also leave Jesus of our own free will. Jesus saves us, not ourselves, we are saved by our faith in him, and he does the work. IF, we were not sincere, and leave, apparently we were never saved. What then? Should we fear God? Yes, we fear God and reverence him and stay closely abiding in him. He keeps us in his hand; nothing can take you out of God's hand.
2 Cor 13:5 Examine yourselves, whether ye be in the faith; prove your own selves. Know ye not your own selves, how that Jesus Christ is in you, except ye be reprobates?
Continue in the faith, continue to learn more and more of him, continue to praise him, continue to worship him. Do not allow your love for Christ Jesus to grow cold. For those who are His, are sealed by the Holy Spirit forever.
2 Cor 1:20 For all the promises of God in him are yea, and in him Amen, unto the glory of God by us.
2 Cor 1:21 Now he which stablisheth us with you in Christ, and hath anointed us, is God;
2 Cor 1:22 Who hath also sealed us, and given the earnest of the Spirit in our hearts.
Rom 8:16 The Spirit itself beareth witness with our spirit, that we are the children of God:
Rom 8:17 And if children, then heirs; heirs of God, and joint-heirs with Christ; if so be that we suffer with him, that we may be also glorified together.
Rom 8:18 For I reckon that the sufferings of this present time are not worthy to be compared with the glory which shall be revealed in us.
Phil 4:4 Rejoice in the Lord alway: and again I say, Rejoice.
Phil 4:5 Let your moderation be known unto all men. The Lord is at hand.
Phil 4:6 Be careful (anxious) for nothing; but in every thing by prayer and supplication with thanksgiving let your requests be made known unto God.
Phil 4:7 And the peace of God, which passeth all understanding, shall keep your hearts and minds through Christ Jesus.
Do not fear that you are not saved. The devil will accuse you, resist him and crawl into God the Father's lap, for through Jesus Christ you are kept by your Father, forever in his love. Encourage one another with this.