Exodus 5:1-3

CKJV_Strongs(i)
  1 H310 And afterward H4872 Moses H175 and Aaron H935 went in, H559 and told H6547 Pharaoh, H559 Thus says H3068 the Lord H430 God H3478 of Israel, H5971 Let my people H7971 go, H2287 that they may hold a feast H4057 unto me in the wilderness.
  2 H6547 And Pharaoh H559 said, H3068 Who is the Lord, H8085 that I should obey H6963 his voice H3478 to let Israel H7971 go? H3045 I know H3068 not the Lord, H3478 neither will I let Israel H7971 go.
  3 H559 And they said, H430 The God H5680 of the Hebrews H7122 has met H3212 with us: let us go, H7969 we pray you three H3117 days' H1870 journey H4057 into the desert, H2076 and sacrifice H3068 unto the Lord H430 our God; H6293 lest he fall H1698 upon us with pestilence, H2719 or with the sword.