Justification is in Christ alone !
Justification by Faith in Time is only possible and a reality because of Justification in Christ before time. This Justification is given them [Those Justified by Faith in Time] in Christ their Surety Head before the World Began 2 Tim 1:9
9 Who hath saved us, and called us with an holy calling, not according to our works, but according to his own purpose and grace, which was given us[Believers] in Christ Jesus before the world began,
Paul refers to it as Justification by Grace here Titus 3:7
7 That being justified by his grace, we should be made heirs according to the hope of eternal life.
When were they made Heirs specifically ? By their being Chosen in Christ, The Heir of the World before the foundation Eph 1:4
4 According as he hath chosen us in him before the foundation of the world, that we should be holy and without blame before him in love:
Heb 1:2
2 Hath in these last days spoken unto us by his Son, whom he hath appointed heir of all things, by whom also he made the worlds;
Justification by Grace in Titus 3:7 has nothing to do with being Justified by Faith, that they should be made Heirs according to the Hope of Eternal Life, for it is an Eternal Act of God's Grace towards them in Christ, whereby Grace was given them in Him according to God's Eternal Purpose in Christ Eph 3:11 before the World Began. Now this Justification was not as of yet in their Own Persons and Consciences, but Christ being their Surety before the World Began.
Now when they sinned in the time state, by an act of Eternal Grace, God did transfer the guilt and condemnation incurred by them, from them and did impute or charge it to their Surety, who did receive them, and they received a discharge from them, which is Justification by Grace in Titus 3:7 and Rom 3:24. This is True because the Justification by Grace before the World Began, was based on the Surety's Covenant Engagement to be slain, to shed His Blood in Time 1 Pet 1:18-20
18 Forasmuch as ye know that ye were not redeemed with corruptible things, as silver and gold, from your vain conversation received by tradition from your fathers;
19 But with the precious blood of Christ, as of a lamb without blemish and without spot:
20 Who verily was foreordained before the foundation of the world, but was manifest in these last times for you,
So according to this Purpose, its the Blood of the Everlasting Covenant Heb 13:20
20 Now the God of peace, that brought again from the dead our Lord Jesus, that great shepherd of the sheep, through the blood of the everlasting covenant,
Since the Suretyship was setup from Everlasting Prov 8:23
23 I was set up from everlasting, from the beginning, or ever the earth was.
So both Rom 3:24 and Titus 3:7 refer to Eternal Justification in Christ in God's Perception and Sight before the foundation of the World, and this is a Gospel of God's Grace Truth Acts 20:24
24 But none of these things move me, neither count I my life dear unto myself, so that I might finish my course with joy, and the ministry, which I have received of the Lord Jesus, to testify the gospel of the grace of God. 5