4. The Trinity is paradoxical.

The New Testament mentions an incident with Jesus and a fig tree:
Jesus was hungry. Seeing in the distance a fig tree in leaf, he went to find out if it had any fruit. When he reached it, he found nothing but leaves, because it was not the season for figs. Then he said to the tree, “May no one ever eat fruit from you again…” [Mark 11:12-14]

We are told that Jesus approached a fig tree because he was hungry, and became angry and cursed it when he realised it had no fruit. Such an incident makes no sense in light of the Trinitarian claim that Jesus is fully God. God is All Knowing, so if Jesus really is God then that would make him the creator of fig trees, in which case how could he not have known that it was not the season for figs? Moreover why would God curse the fig tree for producing fruit in certain seasons, something He Himself willed it to do? When it comes to the knowledge of Jesus it seems that either the divine nature is lacking or completely absent. How then can the claim be made that Jesus is fully God? From what we’ve seen it seems that Jesus is human but not divine because he lacks essential attributes of God, such as possessing All Knowledge.
Moreover such incidents bring to light the many paradoxes of the Trinity. For example, how can God be All Powerful and yet have weaknesses such as hunger? Such attributes are mutually exclusive. It would be like being asked to draw a square circle. Such a task is impossible, because a shape cannot have four corners like a square and no corners like a circle at the same time. Yet such paradoxes are what Trinitarians have to believe in order for Jesus to not only be God, All Powerful and All Knowing, but also human with limitations such as hunger and possessing limited knowledge. Something cannot be both infinite and finite at the same time, and to believe so is no different than believing in a squircle.
Moreover such divine shortcomings aren’t just restricted to Jesus. The Bible tells us that the Holy Spirit also lacks God’s perfect knowledge:
“But about that day or hour no one knows, not even the angels in heaven, nor the Son, but only the Father.” [Mark 13:32]

Here Jesus categorically states that no one, which includes himself and the Holy Spirit, knows the Hour, but only the Father. Since they both lack the Father’s knowledge, the Trinitarian claim that the Father, Son and Holy Spirit are equal is false. The co-equality of the persons is a central pillar, without which the foundation of the Trinity comes crashing down.