Final answer:
The quote is from the New Testament of the Bible, Ephesians 4:7, and highlights the Christian belief that individuals receive grace in the measure Christ determines.
Step-by-step explanation:
The quotation "But to each one of us grace has been given as Christ apportioned it" is from the Christian New Testament Bible, specifically found in Ephesians 4:7. This passage emphasizes the belief that grace, which can be understood as a divine favor or help, is given to individuals in different measures according to what Christ determines. This concept is important within Christian teachings and underscores the diversity of gifts and roles within the Christian community.