'Thorough' in the Bible

Since [as is well known] many have undertaken to compile an orderly account of the things which have been fulfilled among us [by God],

For God has not called us to impurity, but to holiness [to be dedicated, and set apart by behavior that pleases Him, whether in public or in private].

And let endurance have its perfect result and do a thorough work, so that you may be perfect and completely developed [in your faith], lacking in nothing.