Isaiah 23 and 24 includes an oracle concerning Tyre. Many of these oracles refer to places that are representative of those who do not follow the Lord. They are known for the great evil their prosperity and power has caused. Some of them have been direct opponents of Israel and Judah while others just represent places that will receive judgment. These judgments are similar to the ones expressed in the book of Revelation in the New Testament.
In this case, Tyre will be oppressed for the lifetime of one king then her goods will be dedicated to the Lord.
God is going to rain down His judgment upon the entire earth. Its inhabitants have sinned and will be punished. There will no longer be celebrations and joy. God will manifest His glory on Mount Zion.
In Titus 3 Paul extends the household code to include that citizens should be subject to their rulers. He encourages civil behavior toward everyone.
One thing that is important to note in each of the codes Paul has offered is that even in unjust situations we are encouraged to do our best. His reason for this is that we are not doing things for people we are representing Christ. We are obedient to Him and he wants our best. Paul also acknowledges that if we do our best even for those who are hard on us we will be more likely to receive fair treatment. It is often difficult to keep a good attitude when we are being treated unfairly in the work place or at school, but if we give no reason for criticism we will be less likely to receive harsh treatment. In the end the only one we need to please is God and He deserves our best.
On the other hand if we see others being treated unfairly we need to speak up. We need to pick our fights carefully and make sure they are for a good cause.