John 4:24

God is a Spirit: and they that worship him must worship in spirit and truth.

2 Corinthians 3:17

Now the Lord is the Spirit: and where the Spirit of the Lord is, there is liberty.

Matthew 15:8-9

This people honoreth me with their lips; But their heart is far from me.

Philippians 3:3

for we are the circumcision, who worship by the Spirit of God, and glory in Christ Jesus, and have no confidence in the flesh:

1 Samuel 16:7

But Jehovah said unto Samuel, Look not on his countenance, or on the height of his stature; because I have rejected him: for Jehovah seeth not as man seeth; for man looketh on the outward appearance, but Jehovah looketh on the heart.

Psalm 51:17

The sacrifices of God are a broken spirit: A broken and contrite heart, O God, thou wilt not despise.

Psalm 66:18

If I regard iniquity in my heart, The Lord will not hear:

Isaiah 57:15

For thus saith the high and lofty One that inhabiteth eternity, whose name is Holy: I dwell in the high and holy place, with him also that is of a contrite and humble spirit, to revive the spirit of the humble, and to revive the heart of the contrite.

Psalm 50:23

Whoso offereth the sacrifice of thanksgiving glorifieth me; And to him that ordereth his way aright Will I show the salvation of God.

Psalm 50:13-15

Will I eat the flesh of bulls, Or drink the blood of goats?

2 Corinthians 1:12

For our glorifying is this, the testimony of our conscience, that in holiness and sincerity of God, not in fleshly wisdom but in the grace of God, we behaved ourselves in the world, and more abundantly to you-ward.

1 Timothy 1:17

Now unto the King eternal, immortal, invisible, the only God, be honor and glory forever and ever. Amen.

Treasury of Scripture Knowledge

Summary

God is a Spirit: and they that worship him must worship him in spirit and in truth.

Bible References

A spirit

2 Corinthians 3:17
Now the Lord is the Spirit: and where the Spirit of the Lord is, there is liberty.
1 Timothy 1:17
Now unto the King eternal, immortal, invisible, the only God, be honor and glory forever and ever. Amen.

Must

1 Samuel 16:7
But Jehovah said unto Samuel, Look not on his countenance, or on the height of his stature; because I have rejected him: for Jehovah seeth not as man seeth; for man looketh on the outward appearance, but Jehovah looketh on the heart.
Psalm 50:13
Will I eat the flesh of bulls, Or drink the blood of goats?
Psalm 51:17
The sacrifices of God are a broken spirit: A broken and contrite heart, O God, thou wilt not despise.
Psalm 66:18
If I regard iniquity in my heart, The Lord will not hear:
Isaiah 57:15
For thus saith the high and lofty One that inhabiteth eternity, whose name is Holy: I dwell in the high and holy place, with him also that is of a contrite and humble spirit, to revive the spirit of the humble, and to revive the heart of the contrite.
Matthew 15:8
This people honoreth me with their lips; But their heart is far from me.
2 Corinthians 1:12
For our glorifying is this, the testimony of our conscience, that in holiness and sincerity of God, not in fleshly wisdom but in the grace of God, we behaved ourselves in the world, and more abundantly to you-ward.

American Standard Version Public Domain