Mark 8:17
Jesus really gives us a lot in this verse. The key, though, is to see the progression in the thoughts. The callused heart is where we should begin. Jesus asked the first two parts and throws this to the end to give it emphasis.
So, the first step to the place of understanding that Jesus wanted is the breaking down of a callused heart. A callus is difficult to remedy, and often takes time. This is why Jesus includes a time element in his question. He knew it would take time to break down their hardened hearts, but is emphasizing the fact that he would expect that to be accomplished by now.
After the break down of the callus, perception can begin to develop. This is a wisdom in the person based on lessons from the Source of truth. It will grow as truth pours into the soul. Yet, the disciples had not reached this point.
The final step is the idea of understanding. This means that perception meets reality and begins to piece together truth based on what is known and perceived. This is where spiritual learning and maturity gets started. And, this is where Jesus wanted his disciples to be in thier process of growth.
So, Jesus is not only expressing his disappointment, but also he is outlining the path to progress. Spiritual success is the desire of Christ for each and every one of us.
Heavenly Father, thank you for your instruction found in your Word. We can never say that we have not heard the truth. The Bible exposes us to the raw facts of reality. Our understanding of the world as we would naturally perceive it is challenged with a broader, richer picture. May we never settle for man’s suppositions when we can have God’s record. Your wisdom is so valuable! We could never compare it with anything. Your truth brings to us understanding that helps with all that we need ever know. Thank you for your truth! In the name of the Lord Jesus Christ I pray and praise you, Amen.