Mormon Doctrine Says:   Mormon Scripture Says:   The Bible Says:
  Genealogical research required as part of salvation for the dead       Avoid genealogies for they are unprofitable and vain
 
"Before vicarious ordinances of salvation and exaltation may be preformed for those who have died without a knowledge of the gospel, but who presumably would have received it had the opportunity come to them, they must be accurately and properly identified. Hence, genealogical research is required."

(Mormon Doctrine by Bruce R. McConkie p308)

Worthy young men can become deacons at age 12

"It is the practice of the Church in this dispensation---a practice dictated by the means of the present day ministry and confirmed by the inspiration of the Spirit resting upon those who hold the keys of the kingdom---to confer the Aaronic Priesthood upon worthy young men who are 12 years of age and to ordain them to the office of deacon in that priesthood. Not withstanding the fact that this is the lowest priesthood office, it is yet a high and holy one in God's kingdom. In the meridian of time the needs of the ministry were such that adult brethren were ordained deacons."

 

(Mormon Doctrine by Bruce R. McConkie p183)

 

 

 

"Neither give heed to fables and endless genealogies, which minister questions, rather than godly edifying which is in faith: so do."

(1 Timothy 1:4)

"But avoid foolish questions, and genealogies, and contentions, and strivings about the law; for they are unprofitable and vain."

(Titus 3:9)

Deacons are adult men

"Let the deacons be the husbands of one wife, ruling their children and their house well."

(1 Timothy 3:12)