Unbelievable - So great or extreme as to be difficult to believe; extraordinary

The strangeness of the resurrection, points to the significance of the resurrection.  

John 3:16 (NIV84) 16 “For God so loved the world that he gave his one and only Son, that whoever believes in him shall not perish but have eternal life.

The level of confidence we have in the belief that Jesus is who He says He is and will do what He says He will do.

John 20:1–2 (NIV84) . . . Mary Magdalene went to the tomb and saw that the stone had been removed from the entrance. 2 So she came running to Simon Peter and the other disciple. . . and said, “They have taken the Lord out of the tomb, and we don’t know where they have put him!”

John 20:3–8 (NIV84) 5 [John] . . . looked in at the strips of linen lying there but did not go in. 6 Then Simon Peter . . . arrived and went into the tomb. He saw the strips of linen lying there, 7 as well as the burial cloth that had been around Jesus’ head. The cloth was folded up by itself, separate from the linen.  

8 Finally the other disciple, who had reached the tomb first, also went inside. He saw and believed.