Setting this up with Slack is simple.

In your "Integration Settings" add an Outgoing WebHooks entry with these parameters:

• Channel : Up to your discretion. It is highly recommended you limit to a specific channel. If you are not quite sure just choose '#random'.
• Trigger Word(s) : In this version the only words that will be recognized are 'bible','gospel,'scripture'. Based on recommendations (Pull Requests) there may be more added later.
• URL(s) : this must be 'https://disciplr.herokuapp.com/bible'. This, again, is likely to change in future releases but I expect to maintain backward-compatibility.
• Token : This should be unchanged and can be ignored
• Descriptive Label : This is also up to your discretion but I recommend 'Bible Verse Expert'
• Customize Name : 'god'
• Customize Icon : I really like the 'church' icon

Click "Save Settings" and you are ready to go.

In Slack you simply type something like bible verse John 3:16 and will get a response like this

Some supported alternatives are bible gospel 1 Peter 2:2 and bible scripture Matthew 5:9

In addition, you can simply supply a topic and get a random related verse: bible money It also supports phrases (multiple words). For example: bible heaven and earth

Acknowledgement and thanks to GetBible.net for their API that provides the scripture. I have built this in a modular fashion, though, in order to allow other sources if desired.