NT-EPISTLES.filter - strkjv assure:

strkjv@2Timothy:3:14 @ But continue (5720) thou in the things which thou hast learned (5627) and hast been assured of (5681), knowing (5761) of whom thou hast learned (5627) them;

strkjv@1John:3:19 @ And hereby we know (5719) that we are (5748) of the truth, and shall assure (5692) our hearts before him.