This is what I've been saying!
If everything is 'figurative/symbolic' what actually happened?
Jesus Christ, Himself, refers to the OT but time and time again I see people on here state that the OT is 'symbolic'.
It's very baffling!
Jesus referencing something as being true, is not equivalent to Jesus referring to something as being literal historical truth. There are many kinds of truths in the Bible. Like parables for example. Jesus references them as truth, but that doesn't mean that Jesus is explaining a historical account of the good Samaritan for example.
Another example would be when Jesus references Jonah.
Matthew 12:39–41
For just as Jonah was three days and three nights in the belly of the great fish, so will the Son of Man be three days and three nights in the heart of the earth.
Jesus clearly treated Jonah as authoritative Scripture and used the story to teach about repentance, judgment, and his own death and resurrection through the “sign of Jonah.” However, his use of Jonah does not require the conclusion that he was making a modern, literal-historical claim about every detail of the narrative. In Jewish teaching, Scripture was often used typologically, drawing meaningful patterns from well-known texts, without classifying them by modern genre standards. While many Christians reasonably conclude that Jesus regarded Jonah as a historical event, the Gospels themselves do not force that conclusion, and Christian faith in Jesus does not depend on taking a specific position on the literal historicity of Jonah.
Also, consider the fact that Jonah sinks down to sheol. The pit (a common reference to the underworld of the OT, examples Psalms 30:3 ESV, Psalms 88:3-4 ESV, Psalms 143:7 ESV or Isaiah 14:9-11 ESV) where doors and bars closed upon him forever at the roots of the mountains.
Jonah 2:2-3, 5-6 ESV
[2] saying, “I called out to the Lord, out of my distress, and he answered me; out of the belly of Sheol I cried, and you heard my voice. [3] For you cast me into the deep, into the heart of the seas, and the flood surrounded me; all your waves and your billows passed over me.
[5] The waters closed in over me to take my life; the deep surrounded me; weeds were wrapped about my head [6] at the roots of the mountains. I went down to the land whose bars closed upon me forever; yet you brought up my life from the pit, O Lord my God.
This obviously isn't a literal historical event because we know that there isn't an underworld at the bottom of the sea.
So, people can call these things "fiction". But symbology, typology, and even mythology, are common concepts of the old testament. Jesus refers to them, so we conclude that they are true. But that doesn't mean that the truth is necessarily literal historical truth. As noted with the parables, truth can come in many forms and genres.