as. "As" should precede "not".
uncertainly. Greek. adelos. Only here. Compare 1 Corinthians 14:8; 1 Timothy 6:17. He runs with clear understanding of the conditions and object. See "one thing", Philippians 1:3; Philippians 1:13.
fight. fight with the fist, box. Greek. pukteuo. Only here. The noun pugme, fist, occ Mark 7:3. In these contests it was more than boxing. Instead of. padded glove the hand was covered with the cestus, which consisted of leather bands, studded with pieces of metal.
as one, &c. Read "as one not beating the air". This was called skiamachia, shadow-fighting.