God is for His beloved not only the foundation on which they dwell in
safety, but their perpetual covering. They dwell safely because He is
so. There are many tender shapes in which this great promise is
presented to our faith. Sometimes God is thought of as covering the
weak fugitive, as the arching sides of His cave sheltered David from
Saul. Sometimes He is represented as covering His beloved, who cower
under His wings, 'as the hen gathereth her chickens' when hawks are in
the sky. Sometimes He appears as covering them from tempest, 'when the
blast of the terrible ones is as a storm against the wall,' and 'the
shadow of a great rock' shields from its fury. Sometimes He is pictured
as stretching out protection over His beloved's heads, as the Pillar of
cloud lay, long-drawn-out, over the Tabernacle when at rest, and 'on
all the Glory was a defence.' But under whatever emblem the general
idea of a covering shelter was conceived, there was always a
correlative duty on our side. For the root-meaning of one of the Old
Testament words for 'faith' is 'fleeing to a refuge,' and we shall not
be safe in God unless by faith we flee for refuge to Him in Christ.