In Mark's Gospel, Jesus often does things immediately, especially healing. With one exception (Mk 8:25), He does no gradual physical healings in the Gospels.
Jesus not only acts immediately Himself, but He expects His followers to do the same. "They immediately abandoned their nets and became His followers" (Mk 1:18). Once Jesus called a man to come after Him. "The man replied, 'Let me bury my father first.' Jesus said to him, 'Let the dead bury their dead; come away and proclaim the kingdom of God' " (Lk 9:59-60).
Jesus didn't waste any time while loving us or dying for us, and He expects us to respond accordingly. In our modern day, we usually expect everything to happen instantly. We want others to jump when we say "Jump," yet for ourselves we want to take our good old time. Jesus wants to remove this double standard. Whether we've noticed it or not, He's always there, caring for our needs faster than we can express them.
He promises: "Before they call, I will answer; while they are yet speaking, I will hearken to them" (Is 65:24). Now it's up to us to respond to Him with immediate obedience as befits God Himself.