'Observing' in the Bible

If only you listen well to the voice of Yahweh your God {by observing diligently} all of these commandments that I [am] commanding you {today}.

And it shall be with him, and he shall read it all the days of his life, so that he may learn to revere Yahweh your God by {diligently observing} all the word of this law and these rules,

"{And then} if you do not listen to the voice of Yahweh your God {by diligently observing} all of his commandments and his statutes that I [am] commanding you {today}, then all of these curses shall come upon you, and they shall overtake you:

"And all of these curses shall come over you, and they shall pursue you, and they shall overtake you {until you are destroyed}, because {you did not listen} to the voice of Yahweh your God, {by observing} his commandments and his statutes that he commanded you.

{While} she continued to pray before Yahweh, Eli was observing her mouth.