<p>5:4 <i>But you, brothers, are not in darkness, that this day should overtake you as a thief</i>- it is therefore 'walking in the light' which means that we are not in darkness; we will not be caught off guard by the Lord's coming, as by a thief in the night, if our general walk is &quot;in the light&quot; (Eph. 5:8; 1 Jn. 1:7). If we live as if in the light of His presence, His actual presence will not surprise us as a thief.</p>