CeCe Winans attends Black Girls Rock! 2011 at the Paradise Theater on Oct. 15, 2011 in New York City

*CeCe Winans, godmother to Whitney Houston and Bobby Brown’s daughter Bobbi Kristina, is promising to be “very involved” in the 18-year-old’s life, a source tells E! Online’s Marc Malkin.

The celebrated gospel singer and longtime friend of Houston has reportedly “been praying regularly specifically for Bobbi Kristina,” according to the source.

Soon after learning of Houston’s death, Winans, who lives in Nashville with her husband and their two children, issued a statement to E! News:

“I have no words to express how I feel. Whitney was not just a friend but a sister and I am going to miss her voice, her humor but mostly her friendship. She was undoubtedly one of the greatest singers of all time but she was also a great person. Please keep her family in prayer and the best way to honor her is to be reminded that tomorrow is not promised to any of us so love God and love each other.”

She also tweeted, “I LOVED her SO much, but God loved her more. I pray she’s resting in His arms!”

As previously reported, CeCe’s brother, the Rev. Marvin Winans, will deliver Houston’s eulogy at her funeral on Saturday in New Jersey.