Matthew 6:7

Do not pray by idle rote like pagans, for they suppose they will be heard the more they say;

Romans 1:21

Though they knew God, they have not glorified him as God nor given thanks to him; they have turned to futile speculations till their ignorant minds grew dark.

1 Peter 1:18

you know it was not by perishable silver or gold that you were ransomed from the futile traditions of your past,

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
Do not pray by idle rote like pagans, for they suppose they will be heard the more they say;
Romans 1:21
Though they knew God, they have not glorified him as God nor given thanks to him; they have turned to futile speculations till their ignorant minds grew dark.
1 Peter 1:18
you know it was not by perishable silver or gold that you were ransomed from the futile traditions of your past,

General references

Acts 16:21
they are proclaiming customs which as Romans we are not allowed to accept or observe!"