Sincerity
Sincerity (from sincerus, "without wax ;" honey separated from the wax, perfectly pure). In Scripture sincere (ἄδολος, εἱλικρινής) signifies pure, without mixture. Sincerity is opposed to double-mindedness, or deceit, when the sentiments of the heart are contrary to the language of the lips. Paul (Php 1:10) would have the Philippians to be pure, their behavior innocent, free from offense, "that ye may be sincere and without offense till the day of Christ." Peter (2Pe 3:1) exhorts the pure, sincere mind of the faithful. Paul speaks (1Co 5:8) of sincerity and truth, or of purity and truth, in opposition to the leavened bread of iniquity. He reproaches the false apostles with not preaching Jesus Christ sincerely, purely, with upright and disinterested sentiments (Php 1:15). The reader is referred to a discussion of this subject by Guruall, Christian Armor, 2, 121-148.
⇒"Sincerity." topical outline.