I truly believe that I did explain it, qaz.
To be rendered righteous, which is a life-long process, we need something more than self-effort. Self-effort may avail to some extent, but our personal desires and choices are too much for it. For example, we may wish to seek vengeance against that person who has done us wrong, and actually carry out that vengeance in spite of the fact that Jesus asks us NOT to seek vengeance but to do good to those who wrong us. However Jesus’ death and resurrection made the enabling grace of God available to us so that we can rise above our fallen desires and succeed in doing right. We appropriate this enabling grace by faith.
For the grace of God has appeared for the salvation of all people, training us to renounce impiety and worldly passions, and to live sensible, righteous, and devout lives in the present age, expecting the blessed hope, the appearing of the glory of the great God and of our Savior Jesus Christ, who gave himself for us to redeem us from all lawlessness and to purify for himself a people of his own who are zealous for good works. Declare these things; encourage and reprove with all authority. Let no one disregard you. (Titus 2:11-15)
How do we appropriate this enabling grace? We appropriate it through faith. Jesus died to provide this enabling grace, and by trusting Him to do so, it becomes a reality in our lives.
Many think “δικαιοσυνη,” The Greek word translated as “justification” to mean “being counted as righteous,” whether we are righteous or not. But the word often means “being made righteous.”
Working together [with Him], we entreat you not to accept the grace of God to no purpose. (2 Cor 6:1)
If we try to accept God’s grace in our lives without allowing it to purify us, to render us righteous, then we are accepting it to no purpose.
We must coöperate with God’s enabling grace. We alone cannot achieve consistent righteousness. And God alone will not cause us to be righteous. He respects our ability to choose too much for that. We must coöperate with God’s enabling grace.
This coöperation with God is known as “synergy.” This English word comes from the Greek word for “working together.” (συνεργουντες)
A particular group of denominations push “monergy.” This is the idea God did all the work concerning our righteousness, that we have no part in it at all. No wonder so many fall away, thinking that what they choose to do has no bearing on their standing with God.
However, I think the apostle Paul had it right. Concerning deliverance from wrongdoing, we need to work together with God, and so not accept the grace of God to no purpose.