It was your ancestors, ones for whom God did great things, who rebelled against God.

Hebrews 3:16-19

16 ◄You must keep trusting in God because you must remember who it was who rebelled against God although they heard him speaking to them./Do you remember who it was who rebelled against God although they heard him speaking to them?► [RHQ] It was people who had certainly experienced [LIT] God’s power. It was all those people whom Moses led miraculously out of Egypt. [RHQ] 17 And ◄you must remember who it was that God was disgusted with for 40 years./do you remember who it was that God was disgusted with for 40years?► [RHQ] It was those same people who had sinned like that, and who as a result died in the desert! [RHQ] 18 And ◄you must remember about whom God solemnly declared, “They will not enter the land where I would let them rest.”/do you remember about whom God solemnly declared, “They will not enter the land where I would let them rest”?► [RHQ] It was those Israelites who disobeyed God. 19 So, from that example we (inc) realize that it was because they did not keep trusting in God that they were unable to enter the land where they would rest.