The difference is only a matter of who CAUSES sinners to choose faith in the righteousness of Christ.
The righteousness of God by faith of Jesus Christ is unto all and upon all them that believe.
Romans 3:21 But now the righteousness of God without the law is manifested, being witnessed by the law and the prophets;
Romans 3:22 Even
the righteousness of God which is by faith of Jesus Christ unto all and upon all them that believe: for there is no difference:
Reformers (myself) believe God causes and enables the sinner to comprehend ("see") the gospel of the kingdom,
:doh: The gospel of the kingdom is not the offer on the table! You better get your facts straight. The gospel that is the power of God unto salvation to every one that believeth was a mystery at that time. It is the gospel that Paul received from the risen, glorified Lord Jesus Christ, Himself (Galatians 1:11-12)!
The glorious gospel of Christ:
1 Corinthians 15:1 Moreover, brethren, I declare unto you the gospel which I preached unto you, which also ye have received, and wherein ye stand;
1 Corinthians 15:2 By which also ye are saved, if ye keep in memory what I preached unto you, unless ye have believed in vain.
1 Corinthians 15:3 For I delivered unto you first of all that which I also received, how that Christ died for our sins according to the scriptures;
1 Corinthians 15:4 And that he was buried, and that he rose again the third day according to the scriptures:
The fact that it was a mystery hidden in the scriptures ("according to the scriptures" yet the "wisdom of God in a mystery, even the hidden wisdom"), kept secret until it was made manifest through Paul's preaching!
Romans 16:25 Now to him that is of power to stablish you according to my gospel, and the preaching of Jesus Christ, according to the revelation of the mystery, which was kept secret since the world began,
Romans 16:26 But now is made manifest, and by the scriptures of the prophets, according to the commandment of the everlasting God, made known to all nations for the obedience of faith:
Romans 16:27 To God only wise, be glory through Jesus Christ for ever. Amen.
1 Corinthians 2:6 Howbeit we speak wisdom among them that are perfect: yet not the wisdom of this world, nor of the princes of this world, that come to nought:
1 Corinthians 2:7 But we speak the wisdom of God in a mystery, even the hidden wisdom, which God ordained before the world unto our glory:
1 Corinthians 2:8 Which none of the princes of this world knew: for had they known it, they would not have crucified the Lord of glory.
And the fact that Christ's faith and finished work on the cross extended to the likes of you and me who in time past:
Ephesians 2:11 Wherefore remember, that ye being in time past Gentiles in the flesh, who are called Uncircumcision by that which is called the Circumcision in the flesh made by hands;
Ephesians 2:12 That at that time ye were without Christ, being aliens from the commonwealth of Israel, and strangers from the covenants of promise, having no hope, and without God in the world:
but now
Ephesians 2:13 But now in Christ Jesus ye who sometimes were far off are made nigh by the blood of Christ.
and fellowheirs and of the same Body (beginning with Paul 1 Timothy 1:16 KJB) and partakers of God's promise in Christ by the gospel was a mystery hid in God! It was UNSEARCHABLE!
Ephesians 3:1 For this cause I Paul, the prisoner of Jesus Christ for you Gentiles,
Ephesians 3:2 If ye have heard of the dispensation of the grace of God which is given me to you-ward:
Ephesians 3:3 How that by revelation he made known unto me the mystery; (as I wrote afore in few words,
Ephesians 3:4 Whereby, when ye read, ye may understand my knowledge in the mystery of Christ)
Ephesians 3:5 Which in other ages was not made known unto the sons of men, as it is now revealed unto his holy apostles and prophets by the Spirit;
Ephesians 3:6 That the Gentiles should be fellowheirs, and of the same body, and partakers of his promise in Christ by the gospel:
Ephesians 3:7 Whereof I was made a minister, according to the gift of the grace of God given unto me by the effectual working of his power.
Ephesians 3:8 Unto me, who am less than the least of all saints, is this grace given, that I should preach among the Gentiles the unsearchable riches of Christ;
Ephesians 3:9 And to make all men see what is the fellowship of the mystery, which from the beginning of the world hath been hid in God, who created all things by Jesus Christ:
Ephesians 3:10 To the intent that now unto the principalities and powers in heavenly places might be known by the church the manifold wisdom of God,
Ephesians 3:11 According to the eternal purpose which he purposed in Christ Jesus our Lord:
Ephesians 3:12 In whom we have boldness and access with confidence by the faith of him.