1. Jesus as the Son of God
The Hebrew Scriptures and the New Testament both recognize the idea of God having a "Son." For example:
Proverbs 30:4 – "What is His name, and what is His Son’s name, if you know?"
Psalm 2:7 – "You are My Son; today I have begotten You."
Daniel 7:13-14 – The "Son of Man" comes with the clouds of heaven and is given authority, glory, and a kingdom.
John 3:16 – Jesus is the begotten Son of God, sent into the world for salvation.
2. The Holy Spirit in the Hebrew Bible
The Ruach HaKodesh (Holy Spirit) is clearly active in the Old Testament:
Genesis 1:2 – "The Spirit of God hovered over the waters."
Isaiah 11:2 – "The Spirit of the Lord will rest upon Him."
Psalm 51:11 – "Do not take Your Holy Spirit from me."
Ezekiel 36:26-27 – God promises to put His Spirit within His people.
So, both Jesus (the Son of God) and the Holy Spirit are biblical concepts before Greek philosophy entered the discussion.