Strong's Hebrew #3824
ū·lə·ḇā·ḇə·ḵā

Englishman's Concordance (References)

ū·lə·ḇā·ḇə·ḵā — 1 Occurrence

Isaiah 7:4
HEB:אַל־ תִּירָ֗א וּלְבָבְךָ֙ אַל־ יֵרַ֔ךְ
INT: no have heart no faint