HOUSTON (CBSNewYork/AP) — In his first public comment since his wife’s death, former President George H.W. Bush said he always knew his spouse of 73 years was “the most beloved woman in the world.”

“In fact, I used to tease her that I had a complex about that fact. But the truth is the outpouring of love and friendship being directed at The Enforcer is lifting us all up,” he said in a statement Wednesday. “We have faith she is in heaven, and we know life will go on – as she would have it. So cross the Bushes off your worry list.”

Barbara Bush died Tuesday as their Houston home, where he held her hand, all day, before she died at age 92. They had been married longer than any other presidential couple.

The former president referred to his wife as “The Enforcer,” a term of endearment bestowed by her family as she ran their household while he pursued careers in the Texas oil business and later politics and public service.

PHOTOS: Barbara Bush Through The Years

Their son, former President George W. Bush, told an audience at his presidential library in Dallas on Wednesday that his mother was “funny to the end.” He recalled a phone conversation they had this week.

“The day before she died, I said ‘Mom, I just want you know you’ve been a fabulous mother and I love you dearly.’ And she said, ‘I want you to know that you’re my favorite son — on the phone,'” Bush told the audience.

“I hope you don’t feel sorry for any of us, particularly me,” he added. He said he was at peace because his mother was at peace. “She believes in an afterlife and was joyously looking forward to that afterlife,” he said.

MORE: A Look Back At The Life & Legacy Of Former First Lady Barbara Bush

A tearful Laura Bush added that watching her mother-in-law taught her “how to be a first lady, and I’m so grateful for her example.”

Other tributes heralded the former first lady as a warm woman of strength devoted to not only her family, but to child and adult literacy programs.

Current first lady Melania Trump, who will attend Barbara Bush’s funeral on Saturday in Houston, praised her for putting “family and country above all else.” Among her greatest achievements, President Donald Trump added in a statement, “was recognizing the importance of literacy as a fundamental family value that requires nurturing and protection.”

MORE: George & Barbara Bush; A ‘Storybook’ 73-Year Marriage

Gorbachev, whose last years in office overlapped George H.W. Bush’s presidency, remembered Barbara Bush as warm and astute, saying “she immediately developed a warm relationship” with his wife. Gorbachev visited with the Bushes at the former president’s library at Texas A&M University, where Barbara Bush will be buried.

In Moscow, Kremlin spokesman Dmitry Peskov told reporters that Russian President Vladimir Putin sent a telegram to the former president offering his condolences.

Kuwaiti leader Sheikh Sabah Al Ahmad Al Sabah sent letters of condolence to the Bush family, according to the state-run news agency KUNA. The Arab nation has long celebrated George H.W. Bush for securing its freedom from Iraqi occupation in the 1991 Gulf War, and Barbara Bush was warmly welcomed when she visited Kuwait in 1993 and 2001.

MORE: Former First Lady Barbara Bush Remembered As ‘Lovely, Friendly Woman’ In Hometown Of Rye, N.Y.

Former President Barack Obama said he and former first lady Michelle Obama would always be grateful to Barbara Bush “for the generosity she showed to us throughout our time in the White House.”

“But we’re even more grateful for the way she lived her life — as a testament to the fact that public service is an important and noble calling; as an example of the humility and decency that reflects the very best of the American spirit,” Obama said.

Former President Jimmy Carter and former first lady Rosalynn Carter called Mrs. Bush the “matriarch of a family dedicated to serving.”

Barbara Bush’s funeral will be held at St. Martin’s Episcopal Church, which she and her husband regularly attended. The church will host a public viewing Friday. The funeral Saturday will be by invitation only.

An “uplifting celebration” of Barbara Bush’s life will be held Thursday evening outside Houston City Hall. City officials encouraged people to wear blue, her favorite color, along with pearls, which became her signature neckwear jewelry. City Hall was being bathed in blue lights in her honor.

She was born in New York City in 1925. She grew up in Rye in Westchester County, where she married her war-hero boyfriend, George Herbert Walker Bush, who she met at age 16. They were married for 73 years.

(© Copyright 2018 CBS Broadcasting Inc. All Rights Reserved. The Associated Press contributed to this report.)