From the KJV 1611 with Strong's Concordance
{tis}
Probably emphatic of G5100; an interrogitive pronoun, who, which or what (in direct or indirect questions).
what Revelation 2:7, 11, 17, 29; 3:6, 13, 22; 7:13; 18:18.
who Revelation 5:2; 6:17; 13:4; 15:4.
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