17/12/2023
The prophet Isaiah announced:
“Then Yahweh spoke again to Ahaz, saying, ‘Ask a sign for yourself from Yahweh your God; make it deep as Sheol or high as heaven.’ But Ahaz said, ‘I will not ask, and I will not test Yahweh!’ Then he said, ‘Listen now, O house of David! Is it too slight a thing for you to try the patience of men, that you will try the patience of my God as well? Therefore the Lord Himself will give you a sign: Behold, the virgin will be with child and bear a son, and she will call His name Immanuel.” Isaiah 7:10-14 Legacy Standard Bible (LSB)
According to Matthew, this was fulfilled when Mary, the mother of our Lord conceived and gave birth to Christ as a virgin by the power of the Holy Spirit:
“Now the birth of Jesus Christ was as follows: when His mother Mary had been betrothed to Joseph, before they came together she was found to be with child by the Holy Spirit. And Joseph her husband, being a righteous man and not wanting to disgrace her, planned to send her away secretly. But when he had considered this, behold, an angel of the Lord appeared to him in a dream, saying, ‘Joseph, son of David, do not be afraid to take Mary as your wife; for the One who has been conceived in her is of the Holy Spirit. And she will bear a Son; and you shall call His name Jesus, for He will save His people from their sins.’ Now all this took place in order that what was spoken by the Lord through the prophet would be fulfilled, saying, ‘Behold, the virgin shall be with child and shall bear a Son, and they shall call His name Immanuel,’ which translated means, ‘God with us.’” Matthew 1:18-23 LSB
'Immanuel' = 'God with us' = 'Jesus, for He would save His people from their sins.'