Exodus 39
Bible in Basic English (BBE)
31 It was fixed to the head-dress by a blue cord, as the Lord had given orders to Moses.
Young's Literal Translation (YLT)
31 and they put on it a ribbon of blue, to put `it' on the mitre above, as Jehovah hath commanded Moses.
American Standard-ASV1901 (ASV)
31 And they tied unto it a lace of blue, to fasten it upon the mitre above; as Jehovah commanded Moses.