Our salvation was completed on the cross and paid in full when Jesus said “It is finished” (John 19:30).
Paul’s letters consistently to the Ephesians and Corinthians reflect this.
Eph 2:8-9 For by grace are ye saved through faith; and that not of yourselves: it is the gift of God: not of works, lest any man should boast.
1 Cor 1:18 For the preaching of the cross is to them that perish foolishness; but unto us which are saved it is the power of God.
1 Cor 15:2 by which also ye are saved, if ye keep in memory what I preached unto you, unless ye have believed in vain.
Our current condition of salvation does have future implications.
Rom 5:9 Much more then, being now justified by his blood, we shall be saved from wrath through him.
This is not talking about progressive process but talking about an event that will take place in the future. Our salvation was settled in the past and this condition continues in the present and into the future. Believers are saved from all judgement and wrath both now and from all future wrath. When the wrath that is to come occurs (1 Thess 1:10; 5:9-10), we will be saved from that as well.
The issue comes when people wrest the scriptures and misconstrue “being saved” as a progressive salvation. The justification of our salvation is not progressive but a settled and completed work by our Lord Jesus Christ.
What is “progressive” is sanctification (1 Thess 4:3-4; 2 Thess 2:13; 1 Peter 1:2) where we mature in our faith and “work out our own salvation” (Phil 2:12). We mature by exercising our faith from a position of salvation. James 1:2-11 describes the process whereby the trials of our faith worketh patience, and we let patience hath her perfect work (bring maturity) that we may be perfect (mature).
When a seed is planted, it is already settled what the seed will become. It is just a matter of time for it to grow and mature for it to become what it is growing into. It is already settled who we are, it takes time to grow into, mature, and bear the fruit of who we already are in the Spirit. It is already settled in the spirit who we are, we are in the process of manifesting physically what we already are spiritually. As we mature, we manifest more and more of what we already are spiritually. The final transformation will be when Jesus returns (1 Cor 15:51).
1 John 3:2-3 Beloved, now are we the sons of God, and it doth not yet appear what we shall be: but we know that, when he shall appear, we shall be like him; for we shall see him as he is. And every man that hath this hope in him purifieth himself, even as he is pure.