I was going to do a post with a beautiful image in honor of Trinity Sunday, but it's been done so well by my friends in the blogscape, that I'm going to simply refer you to their websites.
First here's a link to El Padre with his lovely pictures and words from St. Gregory of Nazianzus:
If ever there was a time when the Father was not, then there was a time when the Son was not. I f ever there was a time when the Son was not, then there was at time when the Spirit was not. If the one was from the beginning, then the three were so too. If you throw down the one, I am bold to assert that you do not set up the other two.
Then a link to the MadPriest with his introduction to the Evensong service for his congregation:
This evening we continue to worship God as the eternal Trinity. Sometimes it can be difficult to understand, and even accept that our one God can exist in three persons. Perhaps this is because we tend to think of one being being split up into three persons. However, if we contemplate, in stead, three persons coming together into such a close union that they are one person then the concept of the Trinity becomes something we can begin to understand because most of us, sometime in our lives, will experience something that is similar to such closeness between persons.
Next is Ed, from Simple Village Organist:
Despite an ancient tradition of the feminine Spirit and a fairly exhaustive search, I only came up with this one image of the Trinity that was not three men or two men and a bird. Much as I love the art of the traditional iconography, This Will Just Not Do! Certainly not for my congregation, and not really for me any more. Wise Women of the World, unite; throw off the bird.
To which I would answer, "Wisdom (Lady Sophia) was a lady." Read the good book. The feminine pronoun is used throughout.
Here's a trinity that's interesting and different from Ed, the Presbyterian, who, as you see, is being corrupted more and more each day through his association with irreverent Episcopalians and Anglicans.
Ed has a question for you, which you can answer in the comments to his post:
In conclusion, and somewhat in the spirit of the mentor of many of us, MadPriest, I offer a Trinitarian icon guaranteed to offend just about everyone. Who's who in it? I leave it to your imagination!