Mathew 5:19- Therefore anyone who sets aside one of the least of these commands and teaches others accordingly will be called least in the kingdom of heaven, but whoever practices and teaches these commands will be called great in the kingdom of heaven.
When JESUS said 'this', was HE not still like everyone else under the 'laws' and 'commandments' of Moses and 'without sin' to them and still 'reminding' them to the 'Israelite' to follow meantime, until HE will 'fulfill' them in their full requirement of GOD and for them and 'proclaimed' on the Cross of Calvary to those who 'believe', that;
"It is accomplished."
Do you want to still 'accomplish them' for GOD, or CHRIST have already, from what HE said earlier to the Israelite, have already 'accomplished' them for those who 'believe' HIS 'word/teaching' and therefore 'imparting' in them the New Covenant/Testament, henceforth calling them to 'practice' and 'abide' and 'bear much fruit' and also 'their must also abide'.
GOD bless you in the name of LORD JESUS CHRIST.