Psalm 105 recounts God's faithfulness to Israel throughout its history. Verse 32 specifically refers to the fourth plague God sent upon Egypt as described in Exodus 9:22-26.

Here's a breakdown of the meaning:

"He gave them hail for rain": This is a direct reference to the devastating hailstorm that God sent upon Egypt. Instead of the life-giving rain they expected (and needed for their crops), they received a destructive and deadly barrage of hail. This highlights the opposite of what they desired and what God normally provides. It's a sign of God's judgment and power.

"with lightning in their land": The hailstorm was accompanied by intense lightning. The lightning added to the terror and destruction. It was not just hail, but a complete weather phenomenon of God's wrath.

In essence, the verse means:

God replaced the life-giving rain the Egyptians needed with a destructive hailstorm accompanied by terrifying lightning. This was a demonstration of His power and a punishment for Pharaoh's refusal to release the Israelites.

Figurative/Symbolic Meaning:

Beyond the literal event, the verse can also be interpreted as a reminder that:

God can turn blessings into curses for those who oppose Him.
God's judgment is powerful and can manifest in unexpected and destructive ways.
God controls the natural world and can use it to accomplish His purposes.
Opposing God leads to suffering and loss.

So, while the verse describes a historical event, it also serves as a warning and a reminder of God's power and justice.