Mark 7:7

They worship Me in vain; they teach as doctrine the precepts of men.’

Note Isaiah 29:13 (see also LXX)

BSB · Berean Standard Bible
Howbeit in vain do they worship me, teaching for doctrines the commandments of men.
KJV · King James Version
They worship me in vain, teaching as doctrines the commandments of men.’
WEB · World English Bible
But in vain do they worship me, Teaching as their doctrines the precepts of men.
ASV · American Standard Version

Related passages

From the Treasury of Scripture Knowledge, grouped by the word they explain.

in vain
1 Samuel 12:21; Malachi 3:14; Matthew 6:7; Matthew 15:9; 1 Corinthians 15:14, 58; Titus 3:9; James 1:26; James 2:20
the commandments
Deuteronomy 12:32; Colossians 2:22; 1 Timothy 4:1–3; Revelation 14:11, 12; Revelation 22:18