Matthew 6:24

No one can serve two masters; for either he will hate the one, and love the other; or at lest he will be attached to the one, and neglect the other: ye cannot serve God and mammon:

Luke 16:13

No servant can serve two masters; for either he will hate the one, and love the other; or at lest he will be attached to the one, and neglect the other. Ye cannot serve God and Mammon.

Luke 16:11

If therefore ye have not been faithful in the false riches, who will intrust you with the true?

1 Timothy 6:9-10

But they, that will be rich, fall into temptation and a snare, and into many foolish and hurtful lusts, which plunge men into ruin and perdition.

James 4:4

Ye adulterers and adulteresses, know ye not that the friendship of the world is enmity to God? whosoever therefore will be a friend of the world becomes an enemy of God.

1 John 2:15-16

Love not the world, nor the things that are in the world; for if any one love the world to excess, the love of the Father is not in him.

Luke 16:9

And I say unto you, Make to yourselves friends with these unrighteous treasures, that when they fail, ye may be received into everlasting habitations.

Galatians 1:10

For do I now persuade you to obey men or God? Or do I seek to please men? if I yet pleased men, I should not be the servant of Christ.

Matthew 4:10

then Jesus saith unto him, Be gone, Satan; for it is written, Thou shalt worship the Lord thy God,

Romans 6:16-22

God forbid! Know ye not, that to whom ye present yourselves servants to obedience, his servants ye are whom ye obey? either of sin unto death, or of obedience unto righteousness?

1 Timothy 6:17

Charge them, that are rich in this world, not to be high-minded nor trust in uncertain riches, but in the living God, who richly affords us all things for enjoyment: charge them to do good,

2 Timothy 4:10

through love of this world, and is gone to Thessalonica; as is Crescens to Galatia, and Titus to Dalmatia: Luke only is with me.

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 unto you, Make to yourselves friends with these unrighteous treasures, that when they fail, ye may be received into everlasting habitations.
1 Timothy 6:9
But they, that will be rich, fall into temptation and a snare, and into many foolish and hurtful lusts, which plunge men into ruin and perdition.

General references

James 1:8
A double-minded man is inconstant in all his ways.