"I believe in a kind and loving God, the Creator of all there is."
Which religion is this drawn from, please? I don't recognise it.
"The God of the Bible."
Oh, ok. It was a joke.
"Deny Him at your peril."
Kind and loving, that's God. Mmm-mmm. Yessiree.
'Ahhhhh!' you say, 'But God is like a parent who tells their child not to chew razor blades because it will cut their mouth to pieces. It's not the parent's fault if the child disobeys, is it?'
'Ahhhhhhhhhh, no - ahhhhhhh back, with no returns, because that analogy is stupid. The parent didn't create razorblades and razorblades have a perfectly benign function. What would be a proper analogy would be if the parent had invented razorblades specifically to teach children a lesson about what happens if you disagree with Daddy, in which case, Daddy would be a violent psychopath who deserved no respect. Ahhhhhhhhhhhhhhhhhhhhhhh.'
"In the O/T Gods' actions are questioned by todays atheists, but God built a nation using human strengths and weaknesses."
Can you say 'non-sequiteur'? What does the first statement have to do with the second?
"The Jews. An amazing people with an amazing history, foretold in scripture."
Only in the most general terms. And, as Wizard points out above, wrongly.
"Using human intervention in His nation building, God allowed ethnic cleansing and genocide, and indeed ordered it."
Kind and loving...
"Should we judge God for this?"
Yes.
"Or should we trust in His higher majestic wisdom, as we ask our children to trust in us?"
I believe this has already been covered. Ahhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhh!