V.8 No person can make his spirit stay in himself, or leave, just by his own speaking. This is a clear testimony to the deity of Christ, for He did send His spirit from His body (Matt. 27:5050Jesus, when he had cried again with a loud voice, yielded up the ghost. (Matthew 27:50)).
V.9-14 Innocent people are punished at times and the guilty ones get away with their bad deeds. Is there no justice? Yes, there is, but sinful man is not able to carry it out. Only Christ can, and He will, during the coming period of the millennium (see your chart).
V.15-17 “Why worry about tomorrow and its troubles? Man cannot tell the future anyway, only God knows. Have a good time today.” Aren’t these what so many in this world are saying?
V.17 Read 1 Corinthians 1:21, to see what God has given us in Christ.