[Aliska]

But rather than saying they would have a hard life wouldn't it had been more appropriate to have used the Bible and said not to be unequally yoked with a non-believer

I don't know why they don't draw on scripture more in their public pronouncements, but the catechism is backed up by lots of references to scripture so it isn't as if they don't regard it as important. That scripture you cited is especially appropos in this situation.

[HarleyD]

There's lots of scriptures which could have been drawn upon. We all fail as Christians (especially me) in knowing the right thing to say at the right time. But one would hope our spiritual leaders could clearly articulate the Christian message through the written word.