I'm automating tweeting of an array of sentences but only one sentence gets tweeted and then it breaks

this code is supposed to tweet a sentence in an array of sentences as per the interval. It tweets one sentence but the rest don't get tweeted.

Here is the code

var Twit = require('twit');

var config = require('./config')

var T = Twit(config)

let r = Math.floor(Math.random()*10)

setInterval(tweetIt, 1000*30)

words = ['God is good', 'Today is a good day', 'Make  the rules. Its yr life', 'Pray', 'Learn- Everyday', 'Books?', 'Movies?', 'Adventure?', 'Niceness', 'Love']


function tweetIt(){
    var tweet = {status: words[r]}

    T.post('statuses/update', tweet, 
    function tweeted(err, data, response){
        if(err){
            console.log('it broke')}
        else{console.log('worked');
    }
    }
    )
}

This is the congif file

module.exports ={
    consumer_key: "############",
    consumer_secret: "############",
    access_token: "############",
    access_token_secret:"############"
}

In that array of sentences, only one sentence gets tweeted and the rest dont. Instead, it prints that string error; worked it broke it broke it broke it broke it broke