[Seven_0]

"God is always specific
Read Gen 15...they would enter the land in the 4th generation
Not the third..not the 5th...the fourth... "

The Fourth generation seems specific enough. Question, who is the first? I think that the children of Israel entered the promised land around Salmon, because he married Rachab. He is the tenth generation from Abraham.

[RnMomof7]

Read the word..it is the fourth generation after they are enslaved..did you think God does not know what he is talking about?

Gen 15:14   And also that nation,*** whom they shall serve, will I judge: and afterward shall they come out with great substance. ***
  
  Gen 15:15   And thou shalt go to thy fathers in peace; thou shalt be buried in a good old age.
  
  Gen 15:16  ** But in the fourth generation they shall come hither again: for the iniquity of the Amorites [is] not yet full. **