<p>6:10 <i>Finally, be strong in the Lord and in the strength of his might</i>- Here we have the two aspects brought together: human endeavour meshed with the Lord's activity. We are to be strong, but in His strength. The strength of the Lord's might clearly refers to His Spirit. We are strengthened with His might (1:19; Col. 1:11), and that strengthening is by the might of His Spirit in the inner man (3:16,20 s.w.). The strengthening envisaged is therefore internal, psychological strengthening. But we must wish for it- this will not happen against our will. We must seek to be strong in the Lord, putting on the armour (:11), and will be strengthened by this internal Spirit strengthening.</p>