The verse in (Genesis 13:10) says Lot lifted up his eyes and saw the plain of the Jordan, well-watered, lush, an earthly paradise. Targum Pseudo-Jonathan pierces that pastoral scene with a single blade.
The Aramaic says Lot lifted his eyes toward the place of fornication. The Targumist will not let you read this verse as an innocent real-estate survey. Lot is not just admiring grass. He is already drifting toward the moral coordinates of Sodom. The scenery is a pretext. The heart has already pointed.
And yet the Targum preserves the beauty of the land in full: altogether well watered, before the Lord in his wrath had destroyed Sedom and Amorah; a land admirable for trees, as the garden of the Lord. This is the paradox the Targumist needs you to hold. The plain was beautiful. The plain was also on the verge of being destroyed. Lot saw the beauty and missed the before.
The phrase before the Lord in his wrath had destroyed is a narrator's whisper from the future. The Targum knows how the story ends. Lot does not. He looks at a garden and fails to see the countdown.
This is a warning the Hebrew Bible repeats in many forms. Prosperity is not evidence of blessing. Lush fields are not proof of safety. Sometimes the most beautiful valley is the one whose judgment is closest. Lot's mistake is not ambition; it is a misreading of what he sees. He looks at Sodom and sees Eden. The Targum, from the far side of the destruction, looks at the same view and sees the fire already queued behind the hills.