'Carefully' in the Bible

Then you will succeed, if you carefully obey the rules and regulations which the Lord ordered Moses to give to Israel. Be strong and brave! Don't be afraid and don't panic!

So now, in the sight of all Israel, the Lord's assembly, and in the hearing of our God, I say this: Carefully observe all the commands of the Lord your God, so that you may possess this good land and may leave it as a permanent inheritance for your children after you.