Matthew 6:7

"While praying do not say the same words over and over again, as the Gentiles do, for they suppose that by their much speaking they will gain attention.

Romans 1:21

For although they knew God, yet they did not glorify him as God, nor give him thanks; but became vain in their reasoning, and their senseless minds were darkened.

1 Peter 1:18

For you well know that not with perishable things, with silver or gold, were you redeemed from the emptiness of your manner of life, received by tradition from your ancestors;

Treasury of Scripture Knowledge

Summary

For the customs of the people are vain: for one cutteth a tree out of the forest, the work of the hands of the workman, with the axe.

General references

Bible References

Customs

Matthew 6:7
"While praying do not say the same words over and over again, as the Gentiles do, for they suppose that by their much speaking they will gain attention.
Romans 1:21
For although they knew God, yet they did not glorify him as God, nor give him thanks; but became vain in their reasoning, and their senseless minds were darkened.
1 Peter 1:18
For you well know that not with perishable things, with silver or gold, were you redeemed from the emptiness of your manner of life, received by tradition from your ancestors;

General references

Acts 16:21
"They are teaching customs which it is not lawful for us as Romans to adopt or practise."