The servant raises the one point that needs clarifying in his mind before he is prepared to take an oath. His master has entrusted him with the great responsibility of finding a wife for his son.
How wonderful it is to be sure of divine guidance. There are many situations in which we do not know for sure what the outcome will be, but here because of earlier assurances of the Lord, Abraham could be completely certain that God would provide for him. We too face situations in which God makes it very clear to us what is the only way forward. There is only one way that is consistent with his commandments and the principles by which we are to live. In such circumstances, we can confidently call upon the name of the Lord and advance assured that he will provide for us.