New Living Translation
Though a mighty army surrounds me, my heart will not be afraid. Even if I am attacked, I will remain confident.

American Standard Version
Though a host should encamp against me, My heart shall not fear: Though war should rise against me, Even then will I be confident.

Berean Study Bible
Though an army encamps around me, my heart will not fear; though a war breaks out against me, I will keep my trust.

Douay-Rheims Bible
If armies in camp should stand together against me, my heart shall not fear. If a battle should rise up against me, in this will I be confident.

English Revised Version
Though an host should encamp against me, my heart shall not fear: though war should rise against me, even then will I be confident.

King James Bible
Though an host should encamp against me, my heart shall not fear: though war should rise against me, in this will I be confident.

World English Bible
Though an army should encamp against me, my heart shall not fear. Though war should rise against me, even then I will be confident.

Young's Literal Translation
Though a host doth encamp against me, My heart doth not fear, Though war riseth up against me, In this I am confident.

Psalm 27:3 Additional Translations ...