Peter indicates that the believers do well to give heed to the prophetic word.

[jidong xiao]

在十九节彼得继续说，“我们并有申言者更确定的话，你们留意这话，如同留意照在暗处的灯，直等到天发亮，晨星在你们心里出现，你们就作得好了。”“并”字指明除了前几节所说主变化形像的真实，用以豫防迷信的虚构无稽之事，还有申言者之话的真实，作更确定的证实。彼得说到他对主在变化形像时之荣耀的个人经历以后，接着用申言者的话证实并加强他的见证。

彼得指明信徒留意申言者的话，就作得好了。这就是说，他们正研读旧约的豫言，并留意这些豫言。

彼得把经上豫言的话比作照在暗处的灯。这指明今世乃是黑夜里的暗处，（罗十三12，）这世上的人都是在黑暗里行走、活动。这也指明经上申言者的话犹如信徒的明灯，传输属灵的光（不仅供人心思理解的字句知识），照耀在他们的黑暗里，引导他们进入光明的白昼，甚至经过黑夜，直到主显现的那日，天发亮的时候。在主这阳光显出以前，我们需要祂话的光，照耀我们的脚步。

暗处，原文也可译为阴暗地方，即肮脏、干燥、被人忽略的地方。这是个隐喻，说明背道时的黑暗。今世是黑暗、阴暗、肮脏的地方，但申言者的话是照在暗处的灯。

In verse 19 Peter continues, "And we have the prophetic word made more firm, to which you do well to give heed as to a lamp shining in a dark place, until the day dawns and the morning star rises in your hearts." "And" indicates that in addition to the truth of the Lord's transfiguration covered in the preceding verses as the inoculation against superstitious myths, the truth of the prophetic word is used for a more sure confirmation. After speaking of his personal experience of the Lord's glory in His transfiguration, Peter goes on to use the word of the prophets to confirm his testimony and strengthen it. 

Peter indicates that the believers do well to give heed to the prophetic word. This means that they were studying the Old Testament prophecies and giving heed to them. 

Peter likens the word of prophecy in the Scripture to a lamp shining in a dark place. This indicates that this age is a dark place in the dark night (Rom. 13:12) and that all the people of this world are moving and acting in darkness. It also indicates that the prophetic word of the Scripture, as the shining lamp to the believers, conveys spiritual light to shine in their darkness (not merely knowledge in letters for mental apprehension) and guides them to enter into a bright day, even to pass through the dark night until the day of the Lord's appearing dawns. 

The Greek words rendered "dark place" may also be translated murky place, a place that is squalid, dry, and neglected. This is a metaphor, illustrating the darkness in the apostasy. This age is a dark, murky, squalid place. But the prophetic word is a lamp shining in the darkness.