believe

He did not waver at the promise of God through unbelief, but was strengthened in faith, giving glory to God, and being fully convinced that what He had promised He was also able to perform.
‭‭Romans‬ ‭4‬:‭20‬-‭21‬ ‭NKJV‬‬

“Look, just say what is properly true. When yes is the true answer, just say, ‘Yes.’ And when no is the true answer, just say, ‘No.’ The devil, the boss over the bad spirits, he tries to get you to say more than that, but don’t do it. Don’t say anything more to try to get people to believe you.”
‭‭Matthew‬ ‭5‬:‭37‬ ‭PEV‬‬

Then I heard a loud voice in heaven say: ‘Now have come the salvation and the power and the kingdom of our God, and the authority of his Messiah. For the accuser of our brothers and sisters, who accuses them before our God day and night, has been hurled down. They triumphed over him by the blood of the Lamb and by the word of their testimony; they did not love their lives so much as to shrink from death.
‭‭Revelation‬ ‭12‬:‭10‬-‭11‬ ‭NIVUK‬‬