"Seek the Lord while he may be found; call on him while he is near. Let the wicked forsake their ways and the unrighteous their thoughts" (Isa 55:6-7a).
What happens after the shocking salvation of Isaiah 53? There is a time (for God) to be found. Don't miss it.
"Isaiah 54 - 55 constitute one of the most beautiful pieces of literature in the entire Bible." John Oswalt, Isaiah, The NIV Application Commentary.
"Try and suck all the sweetness that you can out of (Isaiah 54) while we read it. The personal application of a promise to the heart by the Holy Spirit is that which is wanted. This chapter is ... drip with virgin honey. Sip: taste, and be satisfied." Charles Spurgeon.