Your message is already beautifully written. Here it is with a slight adjustment to include the additional details you mentioned earlier:
My deepest condolences to the Silva family. May the cherished memories of David's life, love, and legacy bring you comfort and peace during this difficult time. To David, may he rest in eternal peace, and may his spirit of kindness, compassion, and service continue to inspire those who knew him.
Dear Tammy, Gabbie, Carmen, Arnulfo, Miguel, and the entire Silva family,
My heart goes out to you all as you navigate the profound loss of your beloved David. May the love and support of those around you provide solace, and may the memories of David's gentle strength, devotion, and kindness be a source of peace and comfort. David was a very special man, caring of hearts, and a brilliant individual dedicated to everything he did. Though I am unable to attend the funeral services due to overseas travel, I look forward to speaking with you upon my return to the United States to offer my support and share memories of David's impact. May you find strength in the love you shared and the legacy he leaves behind.
With our deepest sympathy.
Michael Hood and Family