It could mean the 4 in the books of Genesis Adam, Eve, Cain and abel.
JOhn
The fleshly nature or man.
As the bible does not mention the number, but it could be between four to six oreven more.
I believe the bible came from GOD to man.
According to the Tanach, a man can have up to 4 wives. However, each wife has to be given her own house of equal quality to the others.
4 means: The World at Work or Earth
proper masculine noun Bible: Genesis 4:26 Son of Seth Strongs Number H583 Hebrew אנוש: man, human being; mortal, nonrecoverable
look for the book of revelation on 13:18 For it is a number of a man: and his number is six hundred and threescore and six.
In the Bible, some men, such as Solomon, had multiple wives. However, monogamy is also practiced and encouraged in many passages. The Bible does not explicitly stipulate a specific number of wives per man.
Yael (Judges ch.4 and 5).
In the Bible, the number 3 denotes emphasis and it also indicates intensity. (Revelation 4:8; 8:13; 16:13, 19)
Adah and Zillah (Genesis ch.4), who were both married to the same man.