Psalms 78:20

20 Lo, He hath smitten a rock, And waters flow, yea, streams overflow. `Also -- bread [is] He able to give? Doth He prepare flesh for His people?'

Psalms 78:20 In-Context

18 And they try God in their heart, To ask food for their lust.
19 And they speak against God -- they said: `Is God able to array a table in a wilderness?'
20 Lo, He hath smitten a rock, And waters flow, yea, streams overflow. `Also -- bread [is] He able to give? Doth He prepare flesh for His people?'
21 Therefore hath Jehovah heard, And He sheweth Himself wroth, And fire hath been kindled against Jacob, And anger also hath gone up against Israel,
22 For they have not believed in God, Nor have they trusted in His salvation.
Young's Literal Translation is in the public domain.