A system of Lorentz oscillators is considered to interpret of spectral lines of hydrogen atoms. The dielectric permittivity of this system, which takes into account its electric polarization, is considered. The substance is examined in the gas state or in the form of small dust of matter. It is shown that the considering of the electric polarization results in a redshift of spectral lines of the substance and the appearance of dip of curve of spectrum. This dip takes place in the blue side with respect to the spectral position of the already shifted line. The magnitude of the red shift of spectral line and the width of this dip in the spectrum depend strongly on the concentration of hydrogen atoms that create this spectrum and on the spectral position of line that not shifted.