The almighty Lord has empowered His name with the powers of His personal Self.
It is stated in the Srimad Bhagavatam that the name of Krsna is feared even by fear personified.
This means that the name of Krsna is nondifferent from Krsna.
Therefore, His name is as powerful as Himself.
Thus anyone can take advantage of the holy names of Lord Sri Krsna in any situation, even in the middle of greatest dangers.
The transcendental name of Krsna, even when spoken unconsciously or by force of circumstances, can help us get free from the cycle of birth and death.