Love the LORD your God

The LORD our God is one LORD:

And thou shalt love the LORD thy God with all thine heart, and with all thy soul, and with all thy might.

And these words, which I command thee this day, shall be in thine heart:

And thou shalt teach them diligently unto thy children, and shalt talk of them when thou sittest in thine house, and when thou walkest by the way, and when thou liest down, and when thou risest up. Deuteronomy 6:4-7

And it shall come to pass, if ye shall hearken diligently unto my commandments which I command you this day, to love the LORD your God, and to serve him with all your heart and with all your soul,

That I will give you the rain of your land in his due season, the first rain and the latter rain, that thou mayest gather in thy corn, and thy wine, and thine oil.

And I will send grass in thy fields for thy cattle, that thou mayest eat and be full.

Take heed to yourselves, that your heart be not deceived, and ye turn aside, and serve other gods, and worship them; Deuteronomy 11: 13-16

From an old French work:

How to Become Holy

Oh! it is quite easy, if I fulfil every duty to the best of my ability; and many who had no more to do than I have become saints.

One day is the same as another. Prayer, worldly business, calls to be devout, charitable, and faithful,—these are the duties that each hour brings in its turn; and if I am faithful in their fullfilment, God will be always ready to help me, and then what signifies a little pain, or misfortune?