4102. pistis -- faith, faithfulness
... truth, or the truthfulness of God or a religious teacher), especially reliance upon
Christ for salvation; abstractly, constancy in such profession; by extension ...
/greek/4102.htm - 18kHebrews 10:23
Let us hold fast the profession of our faith without wavering; (for he is faithful that promised;)
Nave's Topical Index—AKJV