Like Sarah, who obeyed Abraham and called him her lord. You are her daughters if you do what is right and do not give way to fear.
NIV
It was thus that Sarah obeyed Abraham [following his guidance and acknowledging his headship over her by] calling him lord (master, leader, authority). And you are now her true daughters if you do right and let nothing terrify you [not giving way to hysterical fears or letting anxieties unnerve you].
AMP
Even as Sara obeyed Abraham, calling him lord: whose daughters ye are, as long as ye do well, and are not afraid with any amazement.
KJV
Without weakening in his faith, he faced the fact that his body was as good as dead – since he was about a hundred years old – and that Sarah's womb was also dead.
NIV
He did not weaken in faith when he considered the [utter] impotence of his own body, which was as good as dead because he was about a hundred years old, or [when he considered] the barrenness of Sarah's [deadened] womb. [Gen. 17:17; 18:11.]AMP
And being not weak in faith, he considered not his own body now dead, when he was about an hundred years old, neither yet the deadness of Sarah's womb:
KJV
Then God said, "Yes, but your wife Sarah will bear you a son, and you will call him Isaac. I will establish my covenant with him as an everlasting covenant for his descendants after him."
NIV
But God said, Sarah your wife shall bear you a son indeed, and you shall call his name Isaac [laughter]; and I will establish My covenant or solemn pledge with him for an everlasting covenant and with his posterity after him.
AMP
And God said, Sarah thy wife shall bear thee a son indeed; and thou shalt call his name Isaac: and I will establish my covenant with him for an everlasting covenant, and with his seed after him.
KJV
But God said to him, "Do not be so distressed about the boy and your servant. Listen to whatever Sarah tells you, because it is through Isaac that your offspring will be reckoned."
NIV
God said to Abraham, Do not let it seem grievous and evil to you because of the youth and your bondwoman; in all that Sarah has said to you, do what she asks, for in Isaac shall your posterity be called. [Rom. 9:7.]AMP
And God said unto Abraham, Let it not be grievous in thy sight because of the lad, and because of thy bondwoman; in all that Sarah hath said unto thee, hearken unto her voice; for in Isaac shall thy seed be called.
KJV
And by faith even Sarah, who was past childbearing age, was enabled to bear children because she considered him faithful who had made the promise.
NIV
Because of faith also Sarah herself received physical power to conceive a child, even when she was long past the age for it, because she considered [God] Who had given her the promise to be reliable and trustworthy and true to His word. [Gen. 17:19; 18:11-14; 21:2.]AMP
Through faith also Sara herself received strength to conceive seed, and was delivered of a child when she was past age, because she judged him faithful who had promised.
KJV