The offering of the Lord Jesus Christ is/was/will be sufficient to propitiate the sin of all mankind from days of Adam/Eve to present and into the future. God is fully satisfied with His Son's sacrifice.
Why then are not all "reconciled"? Do you understand the word "reconciled"?
Romans 5:8-10 But God commendeth his love toward us, in that, while we were yet sinners, Christ died for us. Much more then, being now justified by his blood, we shall be saved from wrath through him. For if, when we were enemies, we were reconciled to God by the death of his Son, much more, being reconciled, we shall be saved by his life.
The word "reconciled" in Rom 5:10 is translated from the Greek word katallássō which means decisively change, as when two parties reconcile when coming ("changing") to the same position.
God (the Party of the first part) established His eternal purpose in eternity past ... and He reconciled Himself to mankind through the death of His Son.
The believer (the party of the second part) is reconciled at the time he/she believes (therefore being justified by faith – Rom 5:1 ... justified by His blood – Rom 5:9). At that point, the person "changed" his or her position and is reconciled to God ... both parties (God and the believer) came to the same position (both God and the person are reconciled ... i.e. Greek katallássō).
Those who reject God even as He reaches out to them are not reconciled to God ... not because God has not provided all that is necessary for them to be reconciled, but because they reject that which God has provided for them to be reconciled to God.
The Lord Jesus Christ is the reconciliation ... there is no other way.
Faith in the Lord Jesus Christ is reconciliation to God.
If a person rejects the Lord Jesus Christ ... who is the Way, the Truth, the Life ... there is no reconciliation with God because the party of the second part is not in agreement with God (the Party of the first part).
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