Chris Tomlinson wrote an article over at 'The Gospel Coalition' titled "Is it possible to talk too much about the cross?
He ask's Himself this Question due to the fact that some preachers/Teachers seem to talk about the cross all the time,
why is that? do they need to?  The one thing to remember is that the evangelists spend a lot of time in the gospels talking about the cross, and it is to which Jesus kept referring to when he was talking about His ''Hour".

We can understand why they might carry on in this way because we know the primacy and weight of Calvary.  But there are still times this thought crosses many of our minds:  “Great, so I understand the cross is important.  But can’t we move on to the next topic?”

 

Here’s why the cross matters:  It is at the cross that we see God most clearly.  If history were the vastness of space, the cross would be its brightest star.  We see the fullness of God’s being most clearly at the cross.  We see the fullness of His active purposes most clearly at the cross.

At the cross…

…We see God’s sovereignty—reigning with absolute control over humanity’s greatest sin.

…We see God’s purpose—making known the mystery of His will prepared before time.

…We see God’s plan—to unite all things, on heaven and on earth, in Him.

…We see God’s judgment—requiring recompense for guilt.

…We see God’s holiness—demanding the perfect sacrifice.

…We see God’s power—crushing the Son of God according to the purpose of His will.

…We see God’s wrath—punishing the wretchedness of sin.

…We see God’s sorrow—wailing as only a forsaken son can.

…We see God’s mystery—the Son, as God, separated from the Father, committing His Spirit to God.

…We see God’s compassion—pleading to the Father to forgive the ignorant.

…We see God’s gift—His one and only Son, bruised and broken on our behalf.

…We see God’s mercy—making unrighteous sinners righteous.

…We see God’s love—Christ dying for sinners.

…We see God’s rescue operation—delivering us from the domain of darkness to the kingdom of His Son.

…We see God’s proposal—pledging Himself to His bride forever.

…We see God’s revelation—the Word of God speaking His last so He might speak on behalf of many.

…We see God’s victory—disarming His enemies, putting them to shame, and triumphing over them.

…We see God’s glory—the name of the Father being magnified for the sake of all peoples.

But seeing God most clearly is not an end to itself.  If it were, then the point of all history would be our own clarity of sight.  But that is not history’s purpose.  Everything exists for Jesus, so that in everything He might be preeminent.  We study the Scriptures to know more of God.  We look forward with great hope to the day we will see Him face to face.  But in the here and now, we know God most fully when we look upon the person and work of Jesus on the cross.

 

There are many good Articles and blogs at the gospel coalition, have a look for yourself.  This article can be found here