These 1st 7 because they reveal todays gospel of salvation:
Romans 10:9 That if thou shalt confess with thy mouth the Lord Jesus, and shalt believe in thine heart that God hath raised him from the dead, thou shalt be saved.
10 For with the heart man believeth unto righteousness; and with the mouth confession is made unto salvation.
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;
2 By which also ye are saved, if ye keep in memory what I preached unto you, unless ye have believed in vain.
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;
4 And that he was buried, and that he rose again the third day according to the scriptures:
Ephesians 1:13 In whom ye also trusted, after that ye heard the word of truth, the gospel of your salvation: in whom also after that ye believed, ye were sealed with that holy Spirit of promise,
These because they reveal our salvation is by GRACE thru FAITH. And not because of our law keeping or personal works.
Romans 10:4 For Christ is the end of the law for righteousness to every one that believeth.
Galatians 2:16 Knowing that a man is not justified by the works of the law, but by the faith of Jesus Christ, even we have believed in Jesus Christ, that we might be justified by the faith of Christ, and not by the works of the law: for by the works of the law shall no flesh be justified.
Titus 3:5 Not by works of righteousness which we have done, but according to his mercy he saved us, by the washing of regeneration, and renewing of the Holy Ghost;
2 Timothy 1:9 Who hath saved us, & called us with an holy calling, not according to our works but according to his own purpose and grace, which was given us in Christ Jesus before the world began,
Ephesians 2:8 By grace are ye saved through faith not of yourselves it is the gift of God
9 Not of works lest any man should boast
Romans 5:2 By whom also we have access by faith into this grace wherein we stand, and rejoice in hope of the glory of God
All the above show we access Gods GRACE. Thru our FAITH, placed in the redemptive sin atoning sacrifice, found in the death, burial & resurrection of Jesus the Christ!