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Be zealous therefore sayeth the Lord.
Rev 3:19-20
As many as I love, I rebuke and chasten: be zealous therefore, and repent.
Behold, I stand at the door, and knock: if any man hear my voice, and open the door, I will come in to him, and will sup with him, and he with me.

In all things be enthusiastic.
Psa 37:4
Delight thyself also in the LORD; and he shall give thee the desires of thine heart.

Be like unto a little child, filled full of anticipation, when told that he is going to the zoo.
Mar 10:15
Verily I say unto you, Whosoever shall not receive the kingdom of God as a little child, he shall not enter therein.

Get excited about the things of God.
Eph 5:18-19
And be not drunk with wine, wherein is excess; but be filled with the Spirit;
Speaking to yourselves in psalms and hymns and spiritual songs, singing and making melody in your heart to the Lord;

Be filled with a sense of awe about His marvelous works.
Psa 4:4
Stand in awe, and sin not: commune with your own heart upon your bed, and be still. Selah.
Psa 33:8
Let all the earth fear the LORD: let all the inhabitants of the world stand in awe of him.

Whatever your hand doeth, do it with all your might, with all your heart, with all your strength, with all your mind.
Deu 6:5
And thou shalt love the LORD thy God with all thine heart, and with all thy soul, and with all thy might.

Put your whole being into it.
Eph 6:13-17
Wherefore take unto you the whole armor of God, that ye may be able to withstand in the evil day, and having done all, to stand.
Stand therefore, having your loins girt about with truth, and having on the breastplate of righteousness;
And your feet shod with the preparation of the gospel of peace;
Above all, taking the shield of faith, wherewith ye shall be able to quench all the fiery darts of the wicked.
And take the helmet of salvation, and the sword of the Spirit, which is the word of God:

Let all things be done with delight and joy.
Col 1:10-12
That ye might walk worthy of the Lord unto all pleasing, being fruitful in every good work, and increasing in the knowledge of God;
Strengthened with all might, according to his glorious power, unto all patience and longsuffering with joyfulness;
Giving thanks unto the Father, which hath made us meet to be partaker's of the inheritance of the saints in light:

Hold back nothing but rather go forth with spiritual vigor that glows within your heart called love.
Pro 3:27
Withhold not good from them to whom it is due, when it is in the power of thine hand to do [it].