The Qur'an acknowledges Jesus and the Gospel... We Baha'is acknowledge Jesus and His Gospel as well as Prophet Muhammad and the Qur'an.
What the Qur'an says is that they thought they had "killed" Jesus.. but His Spirit was received by God.
The verse to which the author refers is 4:156 and reads as follows:
"And for their saying, 'Verily we have slain the Messiah, Jesus the son of Mary, an Apostle of God'. Yet they slew him not, and they crucified him not, but they had only his likeness... No sure knowledge had they about him, but followed only an opinion, and they did not really slay him, but God took him up to Himself."
'Abdu'l-Baha's interpretation of the verse is provided in a Tablet published in Star of the West, vol. 2, no. 7, p. 13, in which He has written:
"In regard to the verse, which is revealed in the Koran, that His Highness, Christ, was not killed and was not crucified, by this is meant the Reality of Christ. Although they crucified this elemental body, yet the merciful reality and the heavenly existence remain eternal and undying, and it was protected from the oppression and persecution of the enemies, for Christ is eternal and Everlasting. How can He die? This death and crucifixion was imposed on the physical body of Christ, and not upon the Spirit of Christ" See also Gleanings from the Writings of Baha'u'llah, pp. 85-6. Juan Ricardo Cole discusses Muslim objection to Gospel accounts of the crucifixion of Christ in "the Christian-Muslim Encounter", World Order, Winter 1977-8, pp. 18 and 22.
Also in another verse of the Quran regarding martyrs:
Surih 2:154
And say not of those who are slain in the Way of Allah: They are dead " Nay they are living, though ye perceive it not.."
The Sonship of Jesus can be recognized as a spiritual station .. just as Abraham was a "friend of God".