Isaiah 7:14: The Sign the Lord Gives Ahaz
Ahaz refuses to ask for a sign, so the Lord gives one anyway: a child whose name means God is with us. The promise lands first on a frightened dynasty facing two invading kings, and its timing is tied to the child's earliest years.
Isaiah 7:14: The Sign God Gave Unasked
Isaiah 7:14 is a sign God gave to a king who refused to ask for one, and its wording stretches beyond Ahaz's crisis to the birth of Jesus. That is why denying the virgin birth is not a small matter of taste.
What is sensus plenior or fuller meaning in Scripture: A Step-by-Step Guide
Sensus plenior names the question of whether the New Testament's use of older Scripture says more than the human author intended. Matthew 1:18–25 shows how to judge a proposed fuller meaning by the words quoted, the context, and the writer's own line.