Exodus 18:8

1) Moshe's goal was to turn Yitro's visit from just a way of Yitro recognizing the great nissim to translate into Yitro growing closer to Torah. Chazal even tell us that Yitro converted based on Moshe pulling him close.

And Mosheh recounted to his father-in-law all that the Lord had done to Pharoh and to the Mizraee on behalf of Israel; all the hardship they had found in the way, at the sea of Suph, and at Marah, and at Rephidim, and how Amalek had fought with them, and the Lord had delivered them.

2) Moshe explained to Yitro not only the final result (Yetziat Mitzrayim), but the challenges that the Jewish people face along the way.

התלאה אשר מצאתם בדרך, Pharaoh’s pursuit, problems of lack of water and food in the desert, all of which had been solved for them by G’d.

את אשר עשה ה' לפרעה ולמצרים על אודות ישראל. A reference to G’d performing vengeance as the avenger of His people. Compare Deuteronomy 32,41 for similar syntax used by Moses. when he quotes G’d as saying אשיב נקם לצרי, “vengeance will I wreak on My foes.” This referred to the Egyptians experiencing G’d’s retribution on their own bodies when they drowned in the sea. In Psalms 78,49 the psalmist describes 4, resp. 5 stages of G’d’s anger which the Egyptians had to experience before they died. Tthat verse is the subject of detailed analysis in the Haggadah shel Pessach. These events proved that G’d had chosen the Jewish people as His most treasured possession among the nations.

את כל התלאה אשר מצאתם בדרך, hunger, thirst, and the unprovoked attack by Amalek.

'ויצילם ה, this demonstrated G’d’s personal concern and involvement in the fate of the Jewish nation. The reason for this could only be that the religious principles as well as their deeds found favour in G’d’s eyes, preparing the way for all of them to serve Him in unison.