Treasury of Scripture Knowledge

Summary

And Samuel spake unto all the house of Israel, saying, If ye do return unto the LORD with all your hearts, then put away the strange gods and Ashtaroth from among you, and prepare your hearts unto the LORD, and serve him only: and he will deliver you out of the hand of the Philistines.

Bible References

Prepare

Matthew 15:8
This people honors me with the lips, but their heart is far from me.
John 4:24
God is a Spirit, and those that worship him must worship in spirit and truth.

Serve him

Matthew 4:10
Then Jesus said to him, Get behind me Satan; for it is written, You shall worship the Lord your God, and him only shall you serve.
Matthew 6:24
No one can serve two masters; for either he will hate the first, and love the other, or he will adhere to the first, and despise the other. You cannot serve God and riches.
Luke 4:8
And Jesus answered and said to him, It is written, You shall worship the Lord your God, and him alone shall you serve.