'Diligently' in the Bible
“Only pay attention and watch yourselves closely so that you do not forget the things which your eyes have seen and they do not depart from your heart all the days of your life. Make them known to your children and your grandchildren [impressing these things on their mind and penetrating their heart with these truths]—
You shall teach them diligently to your children [impressing God’s precepts on their minds and penetrating their hearts with His truths] and shall speak of them when you sit in your house and when you walk on the road and when you lie down and when you get up.
You shall diligently keep [foremost in your thoughts and actively do] the commandments of the Lord your God, and His testimonies and His statutes which He has commanded you.
“It shall come about, if you listen obediently and pay attention to My commandments which I command you today—to love the Lord your God and to serve Him with all your heart and with all your soul [your choices, your thoughts, your whole being]—
For if you are careful to keep all this commandment which I am commanding you to do, to love the Lord your God, to walk [that is, to live each and every day] in all His ways and to hold tightly to Him—
then you shall investigate and search out [witnesses] and ask thorough questions. If it is true and the matter is established that this loathsome thing has been done among you,
and if it is told to you and you hear about it, then you shall investigate thoroughly [all the charges]. If it is confirmed beyond doubt that this detestable thing has been done in Israel,
The judges shall investigate thoroughly, and if the witness is a false witness, and he has accused his brother falsely,
“Be careful during an outbreak of leprosy, that you diligently observe and do according to all that the Levitical priests teach you; just as I have commanded them, so you shall be careful to do.
“Now it shall be, if you diligently listen to and obey the voice of the Lord your God, being careful to do all of His commandments which I am commanding you today, the Lord your God will set you high above all the nations of the earth.