MoonThe “blood moon prophecy”, as I understand it, refers to a relatively rare alignment of the moon, sun and earth producing a reddish color on the moon (a type of eclipse).  Since there seem to be four appearances of this type of alignment in this century that apparently occurring on significant Jewish Holy Days, some have concluded that this may be a significant sign from God regarding the nearness of the coming of Christ. Joel 2:31 is quoted in support of this concept:

“The sun will be turned to darkness and the moon to blood before the coming of the great and dreadful day of the Lord.” Joel 2:31

When dealing with things that are not specifically stated in scripture, it is important to distinguish between:  1) Revelation – what God has said  2) Interpretation – what someone thinks is meant by what God has said and  3) Speculation – what someone thinks is true about something God has not said.  For example God said what we find in Joel 2:31 (Revelation).  People differ about what God meant by what he said in Joel 2:31.  Some people believe it to be completely fulfilled on the day of Pentecost (cf. Acts 2:17) while others believe it will not be completely fulfilled until the return of Christ. (Interpretation).  Then there is the category of speculation where people assign specific fulfillments about prophecy that God has not made.  For example, there was a book published in 1988 called “88 Reasons Christ will Return in 1988”.  God did say Christ will return (Revelation).  He did give signs of his return (Revelation).  He did not say he would return in 1988 (Speculation).  Is it wrong to speculate?  Not necessarily, it is simply our God-given imagination that attempts to put all the pieces of the puzzle together in areas where God has not been specific about the fulfillment of his plans for us. The only problem is when we elevate our human speculation  about something God has said to the level of Revelation.  For example, to say that God said (based on my speculation about His revelation) he would return in 1988 would be to mislead people into thinking God has said something he has not said.  It is important to distinguish Revelation, from Interpretation and interpretation from speculation.