I found this commentary on Isaiah 54 very interesting. Here are some key points: (emphasis in bold is mine)
What an amazing reminder than the Bible is a living text. It reveals God's promises for the future and the promises that have already been fulfilled and the promise of those still yet to come.
1. Who Are invited?We are offered the things we need to be satisfied, we don't always accept.
3. What Are We Told to Do to Get These Benefits?
Finally, Isaiah 56. I found this commentary: (emphasis in bold is mine)
All things are possible through faith and love and obedience. We are accepted by God regardless of what we have done because of Jesus. We need to be careful of those who stray from God's will especially in leaders and teachers in the church. Not all pastors are fully walking in the truth. May we be able to discern what is true and follow in obedience to experience a fulfillment that is lasting.
Tomorrow's Bible In a Year Passage: Isaiah 57-59