What is the biblical basis for "March for Jesus" or "Jesus Day"? As a Christian, I believe that the scripture contains the basis for all the activity that I, as a member of the Church, need to get involved. 

Of course, we can't find all kind of Christian activity on the text in stricto sensu, but we surely need to find a consistent theological ground that clearly support every activity that we get involved into.

That being said, my question is: what is the biblical basis for things like "March for Jesus" or "Jesus Day"? There is any commitment for the church to march into the streets or to make a spiritual parade, like romans had the Lupercalia and feasts like that? 

I can't remember any verse in the NT that supports such a behavior. 

Some points:


The Wikipedia article provides no such thing as a Bible basis, even in the "further reading section".
No event website provides any Biblical basis at all, like London Jesus Day or Brazilian March for Jesus or even this really old website, from the beginnings.
Here in Brazil, we have the biggest March for Jesus and is important to state that the Pentecostal movement is largely involved with that.
There seem to be no records of the specific theological basis on which March for Jesus was founded. However based on its priorities and aims it is easy enough to discern general theological principles for the event.

The founders (like many Christians) are coming from a theological traditional where it is not necessary to find specific biblical approval for something as long as it is in accordance with Biblical principles. The general purposes of March for Jesus are well supported in scripture:


Praising God. The main focus of March for Jesus is praise for God. Plenty of scripture attests to the need for this, both in public and private.
Making the name of Jesus known Obviously also commanded as a central part of Christianity.
Prayer Prayer is also a major focus of March for Jesus, specifically prayer for the city the march takes place in. Christians are commanded to pray not just for themselves but for their rulers and cities they live in.


Since there is a 'vast theological basis' for these activities, the founders take the view that there is nothing wrong, and much that is right, with adapting them to a present-day form.