Can you point to the Scriptural passages that assert this?
How about:
We then, as workers together with Him also plead with you not to receive the grace of God in vain. For He says: "In an acceptable time I have heard you, And in the day of salvation I have helped you." Behold, now is the accepted time; behold, now is the day of salvation. (2 Cor 6:1-2)
Regards
Scripture is clear that grace alone saves.
Not of works, lest any man should boast. For we are his workmanship, created in Christ Jesus unto good works, which God hath before ordained that we should walk in them." -- Ephesians 2:8-10"For by grace are ye saved through faith; and that not of yourselves: it is the gift of God:
A grace that can be denied is no grace; it's merely friendly persuasion.