2) What is Sarah's character as shown in Gen. Cf. Heb. 11:11; 1 Pet. 3: 5-6. How many wives today become what she calls :her children"?
2)Hebrews 11:11
11By faith Abraham, even though he was past ageand Sarah herself was barrenwas enabled to become a father because he considered him faithful who had made the promise.
I see this as God refering to them both as one, just as Adam/Eve are Adam male/female.
Genesis 1:27
27So God created man in his own image, in the image of God created he him; male and female created he them.
Genesis 5:2
2Male and female created he them; and blessed them, and called their name Adam, in the day when they were created
Sarah is not only the representative of grace:
The seed of the promise was to come thru Sarah (grace) and not Hagar (law)
Hagar and Sarah
Gal.4:21Tell me, you who want to be under the law, are you not aware of what the law says? 22For it is written that Abraham had two sons, one by the slave woman and the other by the free woman. 23His 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.
24These things may be taken figuratively, for the women represent two covenants. One covenant is from Mount Sinai and bears children who are to be slaves: This is Hagar. 25Now Hagar stands for Mount Sinai in Arabia and corresponds to the present city of Jerusalem, because she is in slavery with her children. 26But the Jerusalem that is above is free, and she is our mother. 27For it is written:
"Be glad, O barren woman,
who bears no children;
break forth and cry aloud,
you who have no labor pains;
because more are the children of the desolate woman
than of her who has a husband."
28Now you, brothers, like Isaac, are children of promise. 29At that time the son born in the ordinary way persecuted the son born by the power of the Spirit. It is the same now. 30But 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."[c] 31Therefore, brothers, we are not children of the slave woman, but of the free woman.
But she is also representative of the follower of the Lord:
1 Peter 3:5-6
5For this is the way the holy women of the past who put their hope in God used to make themselves beautiful. They were submissive to their own husbands, 6like Sarah, who obeyed Abraham and called him her master. You are her daughters if you do what is right and do not give way to fear.
We, as true overcomers, the bride, are the daughter's of Sarah:
Gal. 4:28Now you, brothers, like Isaac, are children of promise.
1) What features in Abraham's character does the story of this chapter bring out? With verse 4 cf. Heb. 11:9,10,13-16.
All of these these apply to both Abraham and Sarah:
1)Genesis 23:4
4I am a stranger and a sojourner with you: give me a possession of a buryingplace with you, that I may bury my dead out of my sight.
Hebrews 11:9; Hebrews 11:10; Hebrews 11:13-16
9By faith he sojourned in the land of promise, as in a strange country, dwelling in tabernacles with Isaac and Jacob, the heirs with him of the same promise
10For he looked for a city which hath foundations, whose builder and maker is God.
13These all died in faith, not having received the promises, but having seen them afar off, and were persuaded of them, and embraced them, and confessed that they were strangers and pilgrims on the earth.
14For they that say such things declare plainly that they seek a country.
15And truly, if they had been mindful of that country from whence they came out, they might have had opportunity to have returned.
16But now they desire a better country, that is, an heavenly: wherefore God is not ashamed to be called their God: for he hath prepared for them a city.