[TeamManager]

>I'd like to ask some of the knowledgable Christians here some
>questions about their faith.
>
>1. According to Christianity, was Ishmael the son of Abraham
>an illegitimate child?

For it is written that Abraham had two sons, one by the slave woman and the other by the free woman. His son by the slave woman was born in the ordinary way; but his son by the free woman was born as the result of a promise.
But what does the Scripture say? "Get rid of the slave woman and her son, for the slave woman's son will never share in the inheritance with the free woman's son." Therefore, brothers, we are not children of the slave woman, but of the free woman.
Gal 4:22,23,30,31


>2. Which of the sons of Abraham (Ishmael or Isaac) was to be
>offered as sacrifice according to the Christian faith?

Then God said, "Take your son, your only son, Isaac, whom you love, and go to the region of Moriah. Sacrifice him there as a burnt offering on one of the mountains I will tell you about." Gen 22:2