OSAS is a wrong concept = Once Saved Always Saved.
A proper designation is "eternally secure."
The Biblical concept is saved. If a man is saved, then he is saved. (duh, rocket science). The expression "always saved," suggests that there is such a thing as temporary saved. But a temporary opportunity to be saved is not saved. It is just a chance to be saved. You may as well talk about square circles.
To claim one can be saved, not not always saved, is a denial of salvation, and a denial that we have a Savior who has saved us.
We are secure in Him.
Complete in thee,
No work of mine,
Can take, dear Lord,
The place of thine;
Thy blood hath pardon bought for me;
And I am now,
Complete in thee.
"For by a single offering he has perfected for all time those who are being sanctified." Heb 10
"For I am persuaded, that
neither death, nor life;
nor angels, nor principalities;
nor things present, nor things to come;
nor powers;
nor height, nor depth,
nor any other creature,
shall be able to separate us from the love of God, which is in Christ Jesus our Lord."