تيموثاوس الثانية 2:19

The 'firm foundation of God' bearing two seals — 'The Lord knows those who are his' (quoting Numbers 16:5 in the LXX) and 'Let everyone who names the name of the Lord depart from iniquity' — addresses the confusion created by false teachers by grounding security in divine knowledge rather than human visibility. The first seal (divine election and knowledge) provides assurance; the second (human response of moral departure from evil) provides authentication. Together they address both the security of the genuine believer (God's knowledge cannot be thwarted) and the danger of presumption (naming the name requires corresponding lifestyle). The Numbers 16 context (Korah's rebellion and the test of legitimate priesthood) adds a polemical dimension: the false teachers in 2 Timothy are implicitly characterized as Korah-like usurpers of legitimate ministry.