Yes, grace is a simple concept, that we have been forgiven and made righteous as a free gift from our amazing, bountiful God whose name is Love.
Yet it is also sublime.
The cross is the most deeply profound event in the history of the world, therefore scholarly dissertations are valuable and welcome, yet even then we will never, ever truly understand it (until, perhaps, we are with The LORD in Heaven).
However, to be saved and made holy, to be brought into His eternal family, we don’t need to understand it, just believe it, and come to God as little children, receiving the gift of righteousness, by faith, through grace.
We need do nothing, simply enter His rest, and receive His love.
He does all the do-ing !
From the deep root of His love our love for Him will grow producing fruits of thankfulness, good deeds and obedience, not because we have to, or because we need to, but because we want to… motivated not by fear of punishment or fear of hell but motivated by love.
Once we have put our faith in Christ, The LORD forgives us and purifies us of all our sin, once for all, forever.
We have nothing to prove.
Our Heavenly Father accepts us as we are – because we believe in and have put our hope in His beloved son, Jesus Christ.
And hope does not disappoint us, because God has poured out His love into our hearts by the Holy Spirit whom He has given us.