1 - Is veneration Biblical?
To begin, I would like to define veneration. It can be broken into two parts; The Veneration of Images/Icons, and the Veneration of Saints. I will use the following as a working definition from The Catholic Dictionarypublished by Fr. John Hardon:
Veneration of Images:
“Honor paid to representations of Christ and the saints. Their purpose is to adorn, instruct, and excite to piety those who behold, wear, or carry images on their persons. According to the Council of Trent, images of Christ, of the Mother of God, and other canonized saints are to be kept in churches and due honor paid to them not because there is any divinity or power inherent in them as images, but because the honor shown to them is referred to the prototypes they represent. Through the worship and reverence so shown, the faithful really worship Christ and honor the saints whose likenesses they display. In other words, the veneration is relative, always being referred back to the original, never absolute as though the material object is being venerated in and for itself.”
Notice how the word “worship” is not used towards the Saints or Icons, but to Christ.