Rev. 6:1 I saw when (pp. As I watched) the Lamb (‘Arnion’ originally ‘Aren’ the Lamb of God for sacrifice, redemption and divine vengeance, ‘Amnos’, a lamb figuratively of Christ the expected One)
opened one of the seals ('Sphragis’ a seal or signet on a book or roll, for secrecy to be disclosed; here one of the seven seals),
and I heard as it were the noise (‘Phone’ a voice or sound)
of thunder (‘Bronte’ used with ‘ginomai, to take place warning),
one of the four ('tessares') Living Beings (‘Zoon’, dzo'-on, a deriv. of zao, dzah'-o, to live, living being equivalent to animal, beasts, creatures always standing before the Throne of God, Holy Spirit; In Rev. 4:7 the first living creature was like a lion, with boldness.)
Rev. 6:2 And I looked, and behold (pp. there in front of me was),
a white horse (‘Hippos’, visions of conquest);
and the one who sat on it (pp. Its rider; antichrist, the epithet of the great antagonist who was expected by the early Church to set himself up against Christ in the last days before the Second Coming; some believe this to be Christ, but actually it is the False Christ, who will testify in his name, on a white horse, a symbol of victory, but will mislead many)
had (carried) a bow (‘Toxon’, a bow or control of weapons; also see Psalm 45:4, 5);
and a crown (‘Stephanos’ surrounds as a wall, a symbol of triumph, victory)
was given to him (pp. was placed upon his head),
and he went forth conquering and to conquer (‘Nikao’ to overcome, prevail, victory is used of predicted human potentates).
The Tribulation is distinctly "the time of Jacob’s trouble" Jer. 30:7. Its beginning is signalized by the setting up of the "abomination of desolation" seen in Matt. 24:15, Mark 13:14, Dan. 11:31, 12:11. Also in Dan. 12:1 "a time of trouble."
To some the Seals are events of the ‘last week’ or ‘hebdomad’ a group of seven in Dan. 9:23-27, where Seventy weeks are determined to finish and seal up the vision and anoint the most Holy.