Matthew 6:24

"No one can serve two masters; for either he will hate the one, and love the other; or he will hold to one, and despise the other. Ye cannot serve God and Mammon.

Luke 16:13

No domestic can serve two lords; for either he will hate the one, and love the other; or he will hold to one, and despise the other: ye cannot serve God and mammon."

Luke 16:11

If, therefore, ye were not faithful in the unrighteous mammon, who will entrust to you the true riches?

1 Timothy 6:9-10

But those, purposing to be rich, fall into temptation, and a snare, and many foolish and hurtful desires, which, indeed, sink men into destruction and perdition.

James 4:4

Adulteresses! know ye not that the friendship of the world is enmity with God? Whosoever, therefore, purposes to be a friend of the world makes himself an enemy of God.

1 John 2:15-16

Love not the world, nor the things in the world. If anyone loves the world, the love of the Father is not in him;

Luke 16:9

And I say to you, make to yourselves friends out of the mammon of unrighteousness; that, when it fails, they may receive you into everlasting tabernacles.

Galatians 1:10

For am I now seeking the favor of men, or of God? Or am I seeking to please men? If still I were pleasing men, I should not be Christ's servant.

Matthew 4:10

Then Jesus saith to him, "Depart, Satan; for it has been written, 'You shall worship the Lord your God, and Him only shall you serve.'"

Romans 6:16-22

Know ye not that to whom ye present yourselves as slaves for obedience, his slaves ye are whom ye obey, whether of sin unto death, or obedience unto righteousness?

1 Timothy 6:17

Charge those who are rich in this present age, not to be high-minded, nor to have their hope set on the uncertainty of riches, but on God, Who giveth us richly all things for enjoyment;

2 Timothy 4:10

for Demas forsook me, having loved this present age, and went to Thessalonica; Crescens, to Galatia; Titus, to Dalmatia.

Treasury of Scripture Knowledge

Summary

No man can serve two masters: for either he will hate the one, and love the other; or else he will hold to the one, and despise the other. Ye cannot serve God and mammon.

General references

Bible References

Mammon

Luke 16:9
And I say to you, make to yourselves friends out of the mammon of unrighteousness; that, when it fails, they may receive you into everlasting tabernacles.
1 Timothy 6:9
But those, purposing to be rich, fall into temptation, and a snare, and many foolish and hurtful desires, which, indeed, sink men into destruction and perdition.

General references

James 1:8
a double-souled man, unstable in all his ways.