Mark 12:29

27 He is not the God of the dead, but the God of the living: ye therefore do greatly err.

28 And one of the scribes came, and having heard them reasoning together, and perceiving that he had answered them well, asked him, Which is the first commandment of all?

And Jesus answered him, The first of all the commandments is, Hear, O Israel; The Lord our God is one Lord:

30 And thou shalt love the Lord thy God with all thy heart, and with all thy soul, and with all thy mind, and with all thy strength: this is the first commandment.

31 And the second is like, namely this, Thou shalt love thy neighbour as thyself. There is none other commandment greater than these.

Do read the surrounding verses too, because the context often says more than a single verse.

Compare

BSB
Jesus replied, “This is the most important: ‘Hear O Israel, the Lord our God, the Lord is One.
KJV
And Jesus answered him, The first of all the commandments is, Hear, O Israel; The Lord our God is one Lord:
WEB
Jesus answered, “The greatest is: ‘Hear, Israel, the Lord our God, the Lord is one.
ASV
Jesus answered, The first is, Hear, O Israel; The Lord our God, the Lord is one:
DARBY
And Jesus answered him, [The] first commandment of all [is], Hear, Israel: the Lord our God is one Lord;
BLB
Jesus answered, “The first is, ‘Hear, O Israel: The Lord our God, the Lord is One.
ÅB
Jesus svarte ham: Det første er dette: Hør, Israel! Herren vår Gud, Herren er én,
OTB
"Det fremste," svarte Jesus, "er dette: 'Hør, Israel: Herren vår Gud er én Herre.
B1930
Jesus svarte ham: Det første er dette: Hør, Israel! Herren vår Gud, Herren er én,

Study notes (Tyndale)

Original text and word study

Cross references