Because God is male. Man was created in God’s image, Jesus refers to God in heaven as Father, Jesus is a male (He was circumcised) and the Holy Spirit is also Male (as the Holy Spirit impregnated the Virgin Mary)
Why is God male? Does God have a Y chromosome? Does God produce sperm? Does God have testes?
Where is your textual support for the trinity?
Matthew 28:19
Go therefore and make disciples of all nations, baptizing them in the name of the Father and of the Son and of the Holy Spirit,
Name is singular, and He is equating the Son and the Holy Spirit to the Father who is clearly God. Jesus also claims to be God numerous times.
Matthew does have a “higher” Christology, but how does that mesh with Luke, Mark and John? Can we perhaps notice some patterns in when different gospels were likely written, and how there’s clear evidence of escalation in the claims about what Jesus was, as the texts get further and further away from his actual life?
If the Trinity and Jesus’s divinity are so clearly established in the text, why did it take centuries to come to an agreement on what Christ’s divine nature was? The gospels contradict each other.