From the previous verses to remember:
Ex 23:22 But if thou shalt indeed hearken unto his voice, and do all that I speak; then I will be an enemy unto thine enemies, and an adversary unto thine adversaries.
Ex 24:7 And he took the book of the covenant, and read in the audience of the people: and they said, All that Jehovah hath spoken will we do, and be obedient.
De 11:27 the blessing, if ye shall hearken unto the commandments of Jehovah your God, which I command you this day;
De 28:1 And it shall come to pass, if thou shalt hearken diligently unto the voice of Jehovah thy God, to observe to do all his commandments which I command thee this day, that Jehovah thy God will set thee on high above all the nations of the earth:
Jos 24:24 And the people said unto Joshua, Jehovah our God will we serve, and unto his voice will we hearken.
1Sa 15:22 And Samuel said, Hath Jehovah as great delight in burnt-offerings and sacrifices, as in obeying the voice of Jehovah? Behold, to obey is better than sacrifice, and to hearken than the fat of rams.
Isa 1:19 If ye be willing and obedient, ye shall eat the good of the land:
Jer 7:23 but this thing I commanded them, saying, Hearken unto my voice, and I will be your God, and ye shall be my people; and walk ye in all the way that I command you, that it may be well with you.
Jer 11:4 which I commanded your fathers in the day that I brought them forth out of the land of Egypt, out of the iron furnace, saying, Obey my voice, and do them, according to all which I command you: so shall ye be my people, and I will be your God;
Jer 11:5 that I may establish the oath which I sware unto your fathers, to give them a land flowing with milk and honey, as at this day. Then answered I, and said, Amen, O Jehovah.
Jer 11:6 And Jehovah said unto me, Proclaim all these words in the cities of Judah, and in the streets of Jerusalem, saying, Hear ye the words of this covenant, and do them.
Jer 11:7 For I earnestly protested unto your fathers in the day that I brought them up out of the land of Egypt, even unto this day, rising early and protesting, saying, Obey my voice.
Heb 11:8 By faith Abraham, when he was called, obeyed to go out unto a place which he was to receive for an inheritance; and he went out, not knowing whither he went.