Isaiah 21 and 22 contain oracles concerning the wilderness of the sea, Dumah, and the valley of visions. They, too, speak of doom against the enemies of Zion. They predict the time when God will return a ruler to Judah from the house of David.
Reading prophecy is difficult. It is not presented in a linear fashion. Unless you are a scholar who spends a tremendous amount of time researching the events presented in the text it is difficult to figure out exactly what is happening. Even scholars can misinterpret prophecies and lead us astray. Suffice it to say that in general terms the prophecies in Isaiah are exhortations to trust and obey God or trouble will come. God is faithful and will set up godly leadership and provide forgiveness for those who turn to Him.
In Titus 2 as in many of these personal, pastoral letters Paul encourages Titus to teach sound doctrine. He is to be the model of good works so that his teachings will have integrity. This chapter contains a kind of household code similar to ones we have read in the past. All are to live lives of self-control, righteousness and godliness.