Albert Barnes on Matthew 25:7

Trimmed their lamps. Burning till midnight, the oil was exhausted. They gave a dim and obscure light. They trimmed them by removing the burnt parts of the linen or the torch, so that they would burn clear. It was proper also to dip them again in oil, or to pour oil upon them. This strikingly represents the conduct of most men at the approach of death. They then begin to make ready. they are alarmed, anxious, trembling, and asking the aid of others; and often when it is for ever too late.