The blast took place at about 6:30 p.m. on 18 October
Israelis and Palestinians have blamed each other for this deadly bombing.
While Arab states have blamed Israel, some Western nations have called for an investigation without offering any accusations at this time.
During the strike, more over 3,000 individuals sought refuge at the hospital, according to Dr. Ibrahim Al-Naqa.
Hamas leader Ismail Haniyeh blamed the US, claiming Washington had provided Israel with "cover for its aggression."
The Palestinian Authority's health minister condemned Israel for what he called a "massacre."
Israel has denied the allegations and said that the blast was a result of the failed rocket launch by Hamas.
Biden pointed the finger of blame at Palestinian militants.
Biden said: "I was deeply saddened and outraged by the explosion of the hospital in Gaza yesterday, and based on what I've seen, it appears as though it was done by the other team, not you."