THEREFORE THEN, since we are surrounded by so great a cloud of witnesses [who have borne testimony to the Truth], let us strip off and throw aside every encumbrance (unnecessary weight) and that sin which so readily (deftly and cleverly) clings to and entangles us, and let us run with patient endurance and steady and active persistence the appointed course of the race that is set before us AMP

Wherefore seeing we also are compassed about with so great a cloud of witnesses, let us lay aside every weight, and the sin which doth so easily beset us, and let us run with patience the race that is set before us, KJV