Performing Galatians 6:11

A quote from Alexander V. Prokhorov, "Taking the Jews out of the Equation: Galatians 6.12-17 as a Summons to Cease Evading Persecution," JSNT 36.2 (Dec 2013) 172-188:

[In Gal 6.11] Paul explicitly demands the audience's visual attention: 'Look up: in very large characters I wrote to you with my own hand'. There is a robust consensus that the reading of this letter was an aural event. Martyn (1991:161) puts it like this:

Paul wrote Galatians in the confidence that God intended to cause a certain event to occur in the Galatian congregations when Paul's messenger read the letter aloud to them...the theology of Galatians is focused on that aural event, as it was intended and actively participated by Paul...

In this context, what does the call to visual attention in v. 11 signify? It is probably the point at which it is intended that the reader should lift up the manuscript and demonstrate some of Paul's handwriting to the audience. (pp. 173-174)