Warder Cresson (1799-1860), was the first American Consul to Israel. He converted to Judaism in 1844 and called himself Michael Boaz Israel ben Abraham.
Cresson wrote an autobiography titled Key of David, which you can read on-line
in APPENDIX J. Mogan David; or the Shield of David under his drawing of a Shield of David He writes:
…and as in this Shield of David is represented the Double Triangle of Fire, Light, and Spirit, united and blended with Body, Soul, and Spirit; yet we see God is EXALTED ABOVE ALL THESE, "BLESSED FOREVER and EVER."