What was Abraham thinking????

How could a man of God like Abraham think that God would approve of him having sexual relations with his wife's handmaiden in order to try and "help God out"? That is what I was pondering yesterday morning just before my wife called and said that our van quit running(again). It appears to be another fuel pump(#6). Why now God? No money, big bills(taxes/water/etc), a wedding to go to in Binghamton on Thur., leaving for Africa next week,.......why now God? My first reaction is to go into problem solver mode, and try to figure out a way for me to make it work out. Would God approve of using a credit card to pay for unexpected expenses or would that be like having sexual relations with my wife's handmaid? Hmmmm?

Not quite sure where I'm headed, but walking there by faith.