I am confused. You get something at baptism, which has already occurred, past tense. No presumption there. You got it; you have it. But what you do thereafter could result in losing it, right?
No. What happens in baptism is permanent, and cannot be “undone”. We are sealed by the promised HS.
Your “inheritance” that you don’t get till you get to heaven, is that the “gift” of eternal life that you think God gives you but only after you have endured to the end of your life and still have whatever you got at baptism?
The gift of eternal life comes from the cross. We enter into it through baptism. We “work out our salvation with fear and trembling” while we are here on earth. After we pass from this life, our faith is perfected, and we inherit the very great and precious promises in which we have placed our trust.
And what is it that He “has implanted within us” that He can preserve to the last day? Eternal life?
Eph 4:30-31
30 And do not grieve the Holy Spirit of God, in whom you were sealed for the day of redemption.
Titus 3:3-8
4 but when the goodness and loving kindness of God our Savior appeared, 5 he saved us, not because of deeds done by us in righteousness, but in virtue of his own mercy, by the washing of regeneration and renewal in the Holy Spirit, 6 which he poured out upon us richly through Jesus Christ our Savior, 7 so that we might be justified by his grace and become heirs in hope of eternal life.
We enter into that Life, are sealed by the HS, regenerated and renewed by the HS. If we remain in him, our justification, started at Baptism, will be completed, and we will take posession of our inheritance, being kept for us inheaven.
Code:
Or just the potential of having eternal life as a future inheritance in heaven but not now here on earth?
Eternal Life, in Christ, has broken through into the timeline of this earth. We can enter it now, and remain in it until the end of time. The complete fullness is present at the moment of baptism.
How am I insulting the strength of God when it is you who overrules that strength by saying man has to “endure to the end” or he doesn’t have it preserved?
Because you keep saying that it is “man” who endures. This is not scriptural, and not Apostolic teaching, and denies the promises of God.
1 Peter 1:3-6
By his great mercy we have been born anew to a living hope through the resurrection of Jesus Christ from the dead, 4 and to an inheritance which is imperishable, undefiled, and unfading, kept in heaven for you, 5 who by God’s power are guarded through faith for a salvation ready to be revealed in the last time.
It is God’s power that guards our inheritance, it is He who preserves us in fatih for the salvation which is to come. Man is not capable of such a deed!
Apparently man has more strength to “spurn the gift” than God has to keep man from falling and doing that.
No, God’s power is sufficient:
“Now to him who is able to keep you from falling and to present you without blemish before the presence of his glory with rejoicing…” Jude 24
But He does not “keep from falling” those who are resolved to do so. God created us in His own likeness and image. That means that we have free choice. We can follow His commandments, and remain in eternal life, or we can spurn His commandments, an reject eternal life. If we walk with Him, He will preserve us, and present us without blemish. If we refuse, we will be cut off, and thrown into the fire.
Our names, placed in the book of life at Baptism, will be blotted out.
Rev 3:4-6
5 He who conquers shall be clad thus in white garments, and I will not blot his name out of the book of life; I will confess his name before my Father and before his angels. 6 He who has an ear, let him hear what the Spirit says to the churches.’
I only say that it would be “tenuous and temporary” because that is the effect of the RCC teaching that it dies or ceases to exist whenever a mortal sin is committed and confession is not yet made to a priest. It would be that RCC teaching that insults the strength of God, would it not?
No, God is faithful and just, and if we confess our sins, He forgives them. Sin separates us from God. It separates the sealed, just as it separated them before they were sealed. Why would we need someone to keep us from falling unless it were possible to fall? The sealing does not cease to exist, but the connection with the inheritance preserved in heaven is broken by sin. To restore the sealed to the imperishable inheritance, confession must occur. Unrepentant sin causes men to be cast into the fire of hell.