7. In winter God stops man's out-of-doors activity.
      sealeth--closeth up (Job 9:7). Man's "hands" are then tied up.
      his work--in antithesis to man's own work ("hand") which at other times engages men so as to make them liable to forget their dependence on God. UMBREIT more literally translates, That all men whom He has made (literally, "of His making") may be brought to acknowledgment."

JFB.