Moffatt(i)
25 See that you do not refuse to listen to His voice. For if they failed to escape, who refused to listen to their instructor upon earth, much less shall we escape, if we discard Him who speaks from heaven.
26 Then his voice shook the earth, but now the assurance is, once again I will make heaven as well as earth to quake.
27 That phrase, once again, denotes the removal of what is shaken (as no more than created), to leave only what stands unshaken.
28 Therefore let us render thanks that we get an unshaken realm; and in this way let us worship God acceptably —