My thoughts are that I need to go to bed, sorry.
I am glad you said about the New Covenant, they hated the prophets because they told the truth. Did you know they cut Isaiah in half with a saw? And the apostles died horrible deaths too. Looking at the bold in the verse below, I sometimes wonder if Jesus was talking pre-incarnation? I wonder what others think?
O Jerusalem, Jerusalem, which killest the prophets, and stonest them that are sent unto thee; how often would I have gathered thy children together, as a hen doth gather her brood under her wings, and ye would not! (Luk 13:34 KJV)
About the commandments, I feel the Ten set the minimum standard for all, they do after all form the basis of all our laws. But as Christians I feel we have a higher calling. Personally at 73 years of age, the things of the world have become strangely dim, they hold no attractions for me and therefore I am not tempted, so for myself I seek a closer walk with God and try to live according to the commands he set out in the Sermon on the Mount, which I find exceedingly hard in relation to other people, the majority of whom have no thought for others and only think of themselves, a little like the scribes and Pharisees who were so proud. So yes I am still being tested and you will find that also. So what I do is to look more and more to Jesus each day till the race is run. Speak to you again and may God bless.
