Psalms 64:2

Thou wilt hide me from the secret council of evil doers,

From the tumultuous throng of workers of iniquity.

i.e. from secret machinations and open attack. The cognate verbs are used together in Psalms 2:1-2 (tumultuously assemble, R.V. marg.; take counsel). Cp. Psalms 31:13. The same words occur in Psalms 55:14, but in a good sense.