This, Gambari stated when he spoke with state house correspondents on Wednesday.
He thanked Buhari for the opportunity given to him to serve.
When journalists asked him what Nigerians should expect from him, he said: “I think you have to ask the president.”
He continued: “I have not started, so I will find out… I don’t report directly to the nation; I report directly to the president.”
On what he has to offer the president, he said: “My loyalty, competence and support… I think he needs my loyalty, competence and support.”
Gambari succeeds Abba Kyari who died from complications of COVID-19 in April.
Boss Mustapha, secretary to the government of the federation, announced the appointment of Gambari at the federal executive council (FEC) virtual meeting on Wednesday.