2 Corinthians 6:2:

(For he saith, I have heard thee in a time accepted, and in the day of salvation have I succoured thee: behold, now is the accepted time; behold, now is the day of salvation.)

See also:

The SAVED Test
Objection: It Wasn’t God’s Time to Heal the Beggar at the Gate Beautiful in Jesus’ Ministry; He Had to Wait for Peter and John
Objection: Luke 5:17 Says That the Power of the Lord Was Present to Heal Them, Proving That the Power to Heal Is Not Always Present
Objection: God Heals in His Own Way in His Own Time