It makes alive !
Many in false religion deny the life giving effects of Christ's Death, unto all for whom He died. For simply put, He died in order for them to live unto God ! 2 Cor 5:14-15
14 For the love of Christ constraineth us; because we thus judge, that if one died for all, then were all dead:
15 And that he died for all, that they which live should not henceforth live unto themselves, but unto him which died for them, and rose again.
Here we have a Truth given that Christ died for all, that He died for, gave His life for Eph 5:25, but what is seriously neglected, is that by His Death for all, its concluded, that all died with Him, meaning, that in His Death for them, God legally declares that they have died too n His Death. Now understand this, its this Truth that exposes the false teaching of those who say that Christ's Death was merely a sacrifice for sin, for that is only a half truth, but not only was it that, it was also substitutionary, vicarious, in that in Him, all for whom He died, died as a result of God's law and Justice against their sins, being now satisfied against their persons, as it was satisfied in His Person. Its like saying that through Him, they have all personally paid the penalty of all their sins, past, present and future, and now its nothing left for them but to be given a New Life, to start afresh, which New Life is granted by New Birth, becoming a New Creation, so it comes into fruition as to the purpose Christ died for them, that they may live [spiritually] not unto themselves, but for Him that for their sakes, and in their stead, died and was raised.Its by this Resurrection they are begotten again unto a New Life. 1 Pet 1:3. The word begotten again in the original is anagennao and means:
to produce again, be born again, born anew
2) metaph. to have one's mind changed so that he lives a new life and one conformed to the will of God
This New Life is Granted because that old life of sin against God's law and Justice is dead, and so Paul writes here Rom 7:4
4 Wherefore, my brethren, ye also are become dead to the law by the body of Christ; that ye should be married to another, even to him who is raised from the dead, that we should bring forth fruit unto God.
They have died to the Law by the Body of Christ [His Vicarious Death],to the same thing in 2 Cor 5:14, that they should be married to another [The Son of God] or not to live unto themselves, but unto Him which died for them and rose again !
Peter also writes to the purport as the result of His Death 1 Pet 2:24
24 Who his own self bare our sins in his own body on the tree, that we, being dead to sins, should live unto righteousness[ By a New Life]: by whose stripes ye were healed.
Christ's Death accomplished this New Life for all whom He died, it makes them alive to God.
Rom 6:11
Likewise reckon ye also yourselves to be dead indeed unto sin, but alive unto God through Jesus Christ our Lord.