So how did Jesus avoid having original sin?
sire = A biological father.
The American Heritage® Dictionary of the English Language, 5th Edition.
(MY NOTE: The man is the sire & provides the genes necessary for the child's blood stream & therefore is the sin gene donor.)
Scripture is clear, Jesus was sinless:
2 Corinthians 5:21 For he hath made him to be sin for us, ""who knew no sin""; that we might be made the righteousness of God in him.
(MY NOTE: Christ/Jesus, ""who knew no sin"")
Hebrews 4:15 For we have not an high priest which cannot be touched with the feeling of our infirmities; but was in all points tempted like as we are,""yet without sin"".
(MY NOTE: Christ/Jesus, was tempted ""yet without sin"")
1 John 3:5 and ye know that he was manifested to take away our sins; and ""in him is no sin"".
(MY NOTE: Christ/Jesus, God manifested and ""in him is no sin"")
1 Peter 1:19 But with the precious blood of Christ, as of a lamb ""without blemish and without spot"":
(MY NOTE: Christ/Jesus, the Lamb of God was ""without blemish and without spot"")
1 Peter 2:22 ""Who did no sin"", neither was guile found in his mouth:
(MY NOTE: Christ/Jesus, ""Who did no sin"" nor was any guile found in his mouth)
Conception and Birth of Jesus
Matt 1:
18 Now the birth of Jesus Christ was as follows: when His mother Mary had been [j]betrothed to Joseph, before they came together she was found to be with child : 23
23 Behold, the [n]virgin shall be with child and give birth to a Son, and they shall call His name Immanuel”—which, when translated, means, “God with us.
https://www.biblegateway.com/passage/?search=Matthew+1&version=AMP
(MY NOTE: The VIRGIN will have a child. The sinless Holy Spirit is Jesus Father
Jesus’ Birth Foretold
Luke 1:
26 Now in the sixth month [of Elizabeth’s pregnancy] the angel Gabriel was sent from God to a city in Galilee called Nazareth,
27 to a virgin [j]betrothed to a man whose name was Joseph, a descendant of the house of David; and the virgin’s name was Mary.
28 And coming to her, the angel said, “Greetings, favored one! The Lord is with you.”
29 But she was greatly perplexed at what he said, and kept carefully considering what kind of greeting this was. 30 The angel said to her, “Do not be afraid, Mary, for you have found favor with God.
31 Listen carefully: you will conceive in your womb and give birth to a son, and you shall name Him Jesus.
32 He will be great and eminent and will be called the Son of the Most High; and the Lord God will give Him the throne of His father David;
33 and He will reign over the house of Jacob (Israel) forever, and of His kingdom there shall be no end.”
34 Mary said to the angel, “How will this be, since I am a virgin and have no intimacy with any man?”
35 Then the angel replied to her, “The Holy Spirit will come upon you, and the power of the Most High will overshadow you [like a cloud]; for that reason the holy (pure, sinless) Child shall be called the Son of God.
https://www.biblegateway.com/passage/?search=Luke+1&version=AMP
(MY NOTE: Vs 26 the angel Gabriel is sent, to Mary Vs 27. Vs 34 Mary say's how can I conceive since I'm a VIRGIN? Vs 35 the angel say's the Holy Spirit will cover you like a cloud & your child will be PURE & SINLESS)