Forasmuch as many have taken in hand to set forth in order a declaration of those things which are most surely believed among us,
Forasmuch as many have taken in hand to set forth in order a declaration, х epecheireesan (G2021) anataxasthai (G392) dieegeesin (G1335)] - 'have undertaken to draw up a narrative,'
Of those things which are most surely believed, [ toon (G3588 ) pepleeroforeemenoon (G4135 )] among us - not 'believed confidently,' but 'believed on sure grounds.' So the word "surely" is used by our translators in Proverbs 10:9, "He that walketh uprightly walketh surely."