The bible is your best friend. Have fun:
We are not Guaranteed Salvation; We Hope For Salvation
Heb. 7:27, 9:12,26;10:10; 1 Pet 3:18 - Jesus died once and redeemed us all, but we participate in the application of His redemption by the way in which we live.
Heb. 9:12 - Christ’s sacrifice secured our redemption, but redemption is not the same thing as salvation. We participate in and hope for salvation. Our hope in salvation is a guarantee if we are faithful to Christ to the end. But if we lose hope and fail to persevere, we can lose our salvation. Thus, by our own choosing (not by God’s doing), salvation is not a certainty. While many Protestant churches believe in the theology of “once saved, always saved,” such a novel theory is not found in Scripture and has never been taught by the Church.
Rom. 5:2 - we rejoice in the “hope” (not the presumptuous certainty) of sharing the glory of God. If salvation is absolutely assured after accepting Jesus as Savior, why would Paul hope?
Rom. 5:5 - this “hope” does not disappoint us, because God’s love has been poured into our hearts through the Holy Spirit. Our hope is assured if we persevere to the end.
Rom. 8:24 - this “hope” of salvation that Paul writes about is unnecessary if salvation is guaranteed. If salvation is assured, then why hope?
Rom. 10:1 - Paul prays that the Jews “may be saved.” Why pray if it’s guaranteed? Further, why pray unless you can mediate?
Rom. 12:12 - rejoice in your “hope” (not your certainty), be patient in tribulation, and be constant in prayer.
2 Cor. 3:12 - since we have a “hope” (not a certainty), we are very bold. We can be bold when we are in God’s grace and our persevering in obedient faith.
Gal. 5:5 - for through the Spirit by faith we wait for the “hope” (not the certainty) of righteousness.
Eph. 1:18 - that you may know what is the “hope” to which He has called you, what are the riches of His glorious inheritance.
Eph. 4:4 - there is one body and one Spirit, just as you were called to the one “hope” (not the one certainty) that belongs to your call.
Eph. 6:10-17 – Paul instructs the Ephesians to take the whole armor of God, the breastplate of righteousness, and the helmet of salvation, in order “to stand,” lest they fall. Paul does not give any assurance that the spiritual battle is already won.
Phil. 3:11 - Paul shares Christ’s sufferings so that “if possible” he may attain resurrection. Paul does not view his own resurrection as a certainty.
Phil. 1:20 - as it is my eager expectation and “hope” (not certainty) that I shall not be at all ashamed before Christ.
Col. 1:5 - Paul refers to the “hope” (not guarantee) that Christ laid up for us in heaven.
Col. 1:23 - provided that you continue in the faith, not shifting from the “hope” of the gospel which you heard.
Col. 1:27 - to them God chose to make known His mystery, which is Christ in you, the “hope” (not the certainty) of His glory.
1 Thess. 1:3 - remembering before our God your work of faith and labor of love and steadfastness of “hope” in Jesus Christ.
1 Thess. 2:19 - for what is our “hope” or joy or crown of boasting before our Lord Jesus at his coming? Is it not you?
1 Thess. 5:8 - we must put on the helmet of “hope” (not of certainty) of salvation.
2 Thess. 2:16 - the Lord Jesus and God our Father who loved us and gave us eternal comfort and good “hope” through grace.
1 Tim. 1:1 - Paul describes Christ Jesus as our “hope” (not our guarantee). We can reject Him and He will allow this.
1 Tim. 4:10 - Paul says we toil and strive because we have our “hope” (not our assurance) on the living God. This is not because God is unfaithful, but because we can be unfaithful. We toil and strive for our salvation.
1 Tim. 5:5 - she who is a real widow, and is left all alone, has set her “hope” (not her assurance) on God. Our hope is a guarantee only if we persevere to the end.
1 Tim. 5:15 – Paul writes that some have already strayed after satan, as God Himself tells us in 1 Tim. 4:1. They were on the right path, and then strayed off of it.
2 Tim. 2:10 - Paul endures for the elect so that they “may also obtain salvation.” This verse teaches us that even the "elect,” from the standpoint of human knowledge, have no guarantee of salvation.