Compare Abraham's move with that of the apostle Paul.

While Paul and Silas preached the good news in the city of Thessalonia, an angry mob formed against them.
That same night, the brothers sent both Paul and Silas out immediately to Beroea.

On another occasion, in Troas, Paul recieved a vision to " step over into Macedonia and help [ them ].
" Now soon as he had seen the vision , he left for Macedonia.

Clearly , Paul's haveing no wife allowed for great freedom of movement in a short time period of time,
something that would have been more difficult with a family...
{ Acts 16:8-10, 17: 1-15 }