Yet another non-answer, and another ad hominem. See the white flag of surrender being waved.
As the Calvinists were finding Calvinism, did they discern what "in Him" meant in Ephesians 1:4?
See post #69 for some possibilities.
God chose us in Him , so this verse is saying you are in Christ because of Him, that is God and obviously that has to do with salvation.
Ephesians 1:4 just as He chose us in Him before the foundation of the world, that we should be holy and without blame before Him in love, 5 having predestined us to adoption as sons by Jesus Christ to Himself
1 Corinthians 1:30 But of Him you are in Christ Jesus, who became for us wisdom from God—and righteousness and sanctification and redemption—
Because of God's choosing, a person is in Christ. It is not the other way round, just like 1 Corinthians 1 says in the paragraph about God's choosing us so that no flesh can glory.
26 For you see your calling, brethren, that not many wise according to the flesh, not many mighty, not many [l]noble, are called. 27 But God has chosen the foolish things of the world to put to shame the wise, and God has chosen the weak things of the world to put to shame the things which are mighty; 28 and the base things of the world and the things which are despised God has chosen, and the things which are not, to bring to nothing the things that are, 29 that no flesh should glory in His presence.
30 But of Him you are in Christ Jesus, who became for us wisdom from God—and righteousness and sanctification and redemption— 31 that, as it is written, “He who glories, let him glory in the Lord.”