Consider the following

John 1:14 The Word became flesh and made his dwelling among us. We have seen his glory, the glory of the one and only Son, who came from the Father, full of grace and truth.

John One is my favorite chapter in the Bible, it majestically recounts creation and the center piece of the creation Jesus, not that he was created but rather creating. At the end of the day while the painting is beautiful the joining of the painter and the muse are of much greater mystery and majesty. The painter is multi-faceted, infinitely more powerful than the painting although the painting has it's own special unique and innate value. Jesus is of course is that painter and on this day I am interested in him being full of two seemingly opposing forces.

Tension may not actually be the best descriptor of what I am trying to convey but other words have a hidden element of tension, even the scales of justice have a tension in their balance. Truth's are twisted and done away with when tension is forsaken and humanity rests upon it's own rationality rather than faith.

Our ability to be pure rational creature's without faith leads to morbidity and madness (see Orthodoxy by Chesterton). In the same way when we take a truth created to be in tension and destroy it's balance we create jails of tyranny. For example I am a Truth Loving Christian, Grace may only be applied after repentance (as according to the law). This kind of thinking creates monolithic structures of legality that are void of love and mercy. On the other hand I could be a pinned out on mercy and not allow for truth and justice and stand by as my home is ransacked and my wife and children enslaved while the whole time graciously sitting on my couch, "turning the other cheek."

Jesus came full of Grace and truth, there is no contradiction in him he is full of both. Where have we set the weight of belief on the scales of thought in our lives; Armenianism V Calvanism, Equality V Roles, Grace V Truth?

Websters 1828 Definition of Tension has a chordal element to it. It says the greater the tension the more acute the sound.
In the Gospels the Disciples were with Jesus in one accord, in acts 1 the disciples were together in one accord. There is an element of tension in our accordance. Tension does not guarantee weakness by rather utility. As we know if the string is not wound it makes no sound and cannot be in accord with the other strings, if a string is wound too tightly the same effect takes place (it is broken and produces no sound).

The tension of thought may often times be logically irreconcilable but that is where faith is applied. And faith is far more powerful than mere intellectual ascent.