Commentaries:
Barnes' Notes
For this is the word of promise - This is the promise made to Abraham. The design of the apostle, in introducing this, is doubtless to show to whom the promise appertained; and by specifying this, he shows that it had not reference to Ishmael, but to Isaac.
At this time - Greek, According to this time; see Genesis 18:10, Genesis 18:14. Probably it means at the exact time promised; I will fulfil the prediction at the very time; compare II Kings 4:16.
Other commentary entries containing this verse:
John 8:40
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