When you think things are hopeless, God is looking for your faith. It takes work to believe. Martha knew that Jesus was the resurrection but she didn’t believe that Jesus could raise Lazarus after he had been dead for so many days.
Why did Jesus have to come into Jerusalem riding a donkey? Matthew 5:17 Jesus came to fulfill the words of the prophets; Zechariah 9:9 told Israel to rejoice because their King would come riding into the city on a donkey and a colt.