Hebrews 13:6

4 Marriage is honourable in all, and the bed undefiled: but whoremongers and adulterers God will judge.

5 Let your conversation be without covetousness; and be content with such things as ye have: for he hath said, I will never leave thee, nor forsake thee.

So that we may boldly say, The Lord is my helper, and I will not fear what man shall do unto me.

7 Remember them which have the rule over you, who have spoken unto you the word of God: whose faith follow, considering the end of their conversation.

8 Jesus Christ the same yesterday, and to day, and for ever.

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

Compare

BSB
So we say with confidence: “The Lord is my helper; I will not be afraid. What can man do to me?”
KJV
So that we may boldly say, The Lord is my helper, and I will not fear what man shall do unto me.
WEB
So that with good courage we say, “The Lord is my helper. I will not fear. What can man do to me?”
ASV
So that with good courage we say, The Lord is my helper; I will not fear: What shall man do unto me?
DARBY
So that, taking courage, we may say, The Lord [is] my helper, and I will not be afraid: what will man do unto me?
BLB
So we are confident to say: “The Lord [is] to me a helper, and I will not be afraid; what will man do to me?”
ÅB
så vi kan si med fritt mot: Herren er min hjelper, jeg vil ikke frykte; hva kan et menneske gjøre meg?
OTB
Derfor kan vi si med tillit,
«Herren er min hjelper; jeg vil ikke frykte.
Hva kan mennesker gjøre mot meg?»
B1930
så vi kan si med fritt mot: Herren er min hjelper, jeg vil ikke frykte; hvad kan et menneske gjøre mig?

Study notes (Tyndale)

Original text and word study

Cross references