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This is from the above site ...take note of the last sentence.
Starting with Albert Einstein’s 1917 paper “Kosmologische Betrachtungen zur Allgemeinen Relativitätstheorien” (“Cosmological Considerations on the General Theory of Relativity”), a number of physicists, mathematicians, and astronomers had applied general relativity to the large-scale properties of the universe. The redshift-distance relation established by Hubble and Humason was quickly meshed by various theoreticians with the general relativity-based theory of an expanding universe. The result was that by the mid-1930s the redshift-distance relationship was generally interpreted as a velocity-distance relationship such that the spectral shifts of the galaxies were a consequence of their motions. But Hubble throughout his career resisted the definite identification of the redshifts as velocity shifts. Hubble hoped to shed light on this issue by investigating the numbers of extragalactic nebulae that lay at various distances in space. Hubble conducted these studies in part with the distinguished mathematical physicist and chemist Richard C. Tolman. Writing in the mid-1930s, however, Hubble and Tolman stressed the uncertainty of the observational data.
They declined to choose publicly and unambiguously between a static and a non-static model of the universe. (Hubble later argued that the evidence seemed to favour the concept of a stationary universe, but he did not definitely rule out an expanding universe.)
Alex
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