In 2 Tim. 1:10, " Jesus has " Abolished death"...
"2 Ti 1:10 The manifestation of the Lord, ἐπιφάνεια, is not only His coming into the world per se, but His earthly manifestation in its complete circumference; and the fullness of blessing from it is expressed, negatively and positively, in these words: Who abolished death, and brought life and incorruption to light. The antithesis of life and death is thoroughly Pauline. Both words here must be understood also in their full force. By death, we must not think simply of the moment of separation between body and soul, but of that death which, as the wages of sin, forms a decided opposition to spiritual and eternal life, ςωή. We must think of death as the power which has seized the entire man, body and soul, in consequence of sin, and which makes physical the precursor of moral death (Wiesinger). Life, on the other hand, is that true, spiritual life, which is perfectly identical with the highest happiness, is enjoyed, indeed, this side the grave, is not destroyed by death, and is perfected beyond. The exegetical clause, καὶ ἀφθαρσίαν, denotes it as eternal, imperishable; so that the idea coincides nearly with the ζωὴ αἰώνιος of John. Christ now has destroyed this death. Καταργεῖν signifies here also, as in 1 Cor. 15:26; Heb. 2:14, such a destruction that death is despoiled of his whole power. “In Græcis scriptoribus hoc sensu legere non memini;” Winer. Already now, for believers, death is nothing; the time will come when it shall cease to be. On the other hand, Christ has brought to light life and immortality. Φωτίζειν, an expression which is chosen all the more appropriately here, since also the power of death is a power of darkness. Not only because Christ has imparted this life and immortality to His own (Huther), but chiefly because He has revealed this, and placed it before our eyes, can it be said of Him that He has brought both forth from darkness into light. Never would the world have experienced what eternal life and immortality, in the full meaning of the words, are, had it not beheld them in Christ. We are not accustomed to think here exclusively of the death and resurrection of Christ, although these are in no way excluded. Through His entire manifestation and activity He has bestowed upon us the blessings here mentioned. For the rest, it is obvious that the revelation of life which is given in Christ is likewise, for believers in Him, a communication of life.—Through the gospel; here brought forward as the instrument through which the revelation of life, which was given objectively in Christ, comes subjectively to the knowledge of believing Christians. The gospel is not considered here simply as doctrine, but also as the power of God to save all who believe in it (Rom. 1:16; 1 Thess. 2:13)." Lange, J. P., Schaff, P., & van Oosterzee, J. J. (2008). A commentary on the Holy Scriptures: 1 & 2 Timothy. (E. A. Washburn & E. Harwood, Trans.) (pp. 86–87). Bellingham, WA: Logos Bible Software.