'In Christ' in the Bible
It is a reason for pride and exultation to which our conscience testifies that we have conducted ourselves in the world [generally] and especially toward you, with devout and pure motives and godly sincerity, not in fleshly wisdom but by the grace of God (the unmerited favor and merciful kindness by which God, exerting His holy influence upon souls, turns them to Christ, and keeps, strengthens, and increases them in Christian virtues).
For, many as were the promises of God, in Christ is the 'Yes' that fulfils them. Therefore, through Christ again, let the 'Amen' rise, through us, to the glory of God.
Now he that confirmeth us with you in Christ, and hath anointed us, is God;
Thanks be unto God which always giveth us the victory in Christ, and openeth the savor of his knowledge by us in every place.
For we are not, as the many, driving a petty trade with the word of God; but, as of sincerity, but, as of God, before God, in Christ, we speak.
But their understandings were blinded: and until this day the same veil remaineth unremoved on the reading of the old testament, which is taken away in Christ.
Wherefore if any man is in Christ, he is a new creature: the old things are passed away; behold, they are become new.
To proclaim that God, in Christ, was reconciling the world to himself, not reckoning men's offenses against them, and that he had entrusted us with the Message of this reconciliation.
Now then we are embassadors for Christ, as though God did beseech you by us: we pray you in Christ's stead, be ye reconciled to God.
but I fear lest as the serpent deceived Eve with his craftiness, so also your minds may be corrupted from the simplicity which is in Christ.
I know a man in Christ who fourteen years ago (whether in the body or out of the body I do not know, God knows) was caught up to the third heaven.
Again, think ye that to you we are making defence? before God in Christ do we speak; and the all things, beloved, are for your up-building,