Once you have your message mostly prepared and you begin to focus on your beginning, craft carefully.  It is worth setting off with strength into your message, it is worth beginning with a bang.  That first sentence should command attention and usually set the direction of the message.

Too many of us ease into a message.  It is tempting to take time with introductory humor or nice opening remarks.  “Nice” is not a great compliment, more a vanilla description.  Inexperienced speakers, in any context, tend to begin with a variation on “thank you for this opportunity” or “it gives me pleasure to address . . . ” or similar.  Dull.  Wasteful of these key moments.  Don’t.

I would make two suggestions, depending on context:

If you are in your own culture, begin with a bang. If you have some type of compliment or praise for the listeners, interject it later in the message where it will feel genuine rather than trite.  Give the impression that you intend to waste no time, but rather have something important to share.

If you are visiting another culture, provide a purposeful adjustment phase. I find it is helpful when speaking in a foreign context to begin with a few brief comments expressing my appreciation of their welcome, the heat in comparison to my cold country, or whatever.  I don’t want to undermine my message by beginning with excessive power that might suggest a foreign arrogance.  Neither do I want them to miss the important opening statements as they adjust to my accent.  This introductory phase is limited, purposeful and carefully designed.

The opening sentence of a sermon is critical.  Prepare it carefully, polish it purposefully and practice it repeatedly.