The outcome of God's response:
"And the angels called to him as he stood praying in the mehrab, 'Allah gives thee glad tidings of Yahya, Musaddiq of a Kalimat from Allah, wa Sayyida, wa Hasoora, wa Nabi-ya, min-nass-Salih-heen'." Qur'an 3:39.
'And it came to pass, that while he executed the priest's office before God in the order of his course, according to the custom in the temple of the Lord; there appeared unto him an angel of the Lord; and when Zacharias saw him, he was troubled and fear fell upon him; but the angel said unto him, Fear not Zacharias; for thy prayer is heard, and thy wife Elizabeth shall bear thee a son and thou shalt call his name John.' Luke 1: 8 - 13
The Miracle words
Each word brimful of meaning.
Zachariah's secret concern:
This news though a 'welcome consolation' complicated Zachariah's perplexity all the more. His apprehension though assuaged thankfully was now driven beyond comprehension. What of Mary? Was he wrong about her?
'Thy wife shall bear thee a son'
Words denoting God's glorious miracle. Now that we know the circumstances before and the events after. No wonder Zachariyah was struck dumb for three nights and three days.